diff --git a/adb/bugreport.cpp b/adb/bugreport.cpp
index 9dc9811..d159d6a 100644
--- a/adb/bugreport.cpp
+++ b/adb/bugreport.cpp
@@ -48,7 +48,7 @@
           show_progress_(show_progress),
           status_(0),
           line_(),
-          last_progress_(0) {
+          last_progress_percentage_(0) {
         SetLineMessage("generating");
     }
 
@@ -147,13 +147,14 @@
             size_t idx1 = line.rfind(BUGZ_PROGRESS_PREFIX) + strlen(BUGZ_PROGRESS_PREFIX);
             size_t idx2 = line.rfind(BUGZ_PROGRESS_SEPARATOR);
             int progress = std::stoi(line.substr(idx1, (idx2 - idx1)));
-            if (progress <= last_progress_) {
+            int total = std::stoi(line.substr(idx2 + 1));
+            int progress_percentage = (progress * 100 / total);
+            if (progress_percentage <= last_progress_percentage_) {
                 // Ignore.
                 return;
             }
-            last_progress_ = progress;
-            int total = std::stoi(line.substr(idx2 + 1));
-            br_->UpdateProgress(line_message_, progress, total);
+            last_progress_percentage_ = progress_percentage;
+            br_->UpdateProgress(line_message_, progress_percentage);
         } else {
             invalid_lines_.push_back(line);
         }
@@ -189,7 +190,7 @@
 
     // Last displayed progress.
     // Since dumpstate progress can recede, only forward progress should be displayed
-    int last_progress_;
+    int last_progress_percentage_;
 
     DISALLOW_COPY_AND_ASSIGN(BugreportStandardStreamsCallback);
 };
@@ -267,8 +268,7 @@
     return SendShellCommand(transport_type, serial, bugz_command, false, &bugz_callback);
 }
 
-void Bugreport::UpdateProgress(const std::string& message, int progress, int total) {
-    int progress_percentage = (progress * 100 / total);
+void Bugreport::UpdateProgress(const std::string& message, int progress_percentage) {
     line_printer_.Print(
         android::base::StringPrintf("[%3d%%] %s", progress_percentage, message.c_str()),
         LinePrinter::INFO);
diff --git a/adb/bugreport.h b/adb/bugreport.h
index ee99cbc..d9a4468 100644
--- a/adb/bugreport.h
+++ b/adb/bugreport.h
@@ -43,7 +43,7 @@
                             const char* name);
 
   private:
-    virtual void UpdateProgress(const std::string& file_name, int progress, int total);
+    virtual void UpdateProgress(const std::string& file_name, int progress_percentage);
     LinePrinter line_printer_;
     DISALLOW_COPY_AND_ASSIGN(Bugreport);
 };
diff --git a/adb/bugreport_test.cpp b/adb/bugreport_test.cpp
index b500c49..2b368d7 100644
--- a/adb/bugreport_test.cpp
+++ b/adb/bugreport_test.cpp
@@ -123,7 +123,7 @@
                      bool disable_shell_protocol, StandardStreamsCallbackInterface* callback));
     MOCK_METHOD4(DoSyncPull, bool(const std::vector<const char*>& srcs, const char* dst,
                                   bool copy_attrs, const char* name));
-    MOCK_METHOD3(UpdateProgress, void(const std::string&, int, int));
+    MOCK_METHOD2(UpdateProgress, void(const std::string&, int));
 };
 
 class BugreportTest : public ::testing::Test {
@@ -142,8 +142,8 @@
                             WithArg<4>(ReturnCallbackDone(0))));
     }
 
-    void ExpectProgress(int progress, int total, const std::string& file = "file.zip") {
-        EXPECT_CALL(br_, UpdateProgress(StrEq("generating " + file), progress, total));
+    void ExpectProgress(int progress_percentage, const std::string& file = "file.zip") {
+        EXPECT_CALL(br_, UpdateProgress(StrEq("generating " + file), progress_percentage));
     }
 
     BugreportMock br_;
@@ -200,7 +200,7 @@
     ExpectBugreportzVersion("1.1");
     std::string dest_file =
         android::base::StringPrintf("%s%cda_bugreport.zip", cwd_.c_str(), OS_PATH_SEPARATOR);
-    ExpectProgress(50, 100, "da_bugreport.zip");
+    ExpectProgress(50, "da_bugreport.zip");
     EXPECT_CALL(br_, SendShellCommand(kTransportLocal, "HannibalLecter", "bugreportz -p", false, _))
         .WillOnce(DoAll(WithArg<4>(WriteOnStdout("BEGIN:/device/da_bugreport.zip\n")),
                         WithArg<4>(WriteOnStdout("PROGRESS:50/100\n")),
@@ -247,10 +247,10 @@
 // Tests 'adb bugreport file.zip' when it succeeds and displays progress.
 TEST_F(BugreportTest, OkProgress) {
     ExpectBugreportzVersion("1.1");
-    ExpectProgress(1, 100);
-    ExpectProgress(10, 100);
-    ExpectProgress(50, 100);
-    ExpectProgress(99, 100);
+    ExpectProgress(1);
+    ExpectProgress(10);
+    ExpectProgress(50);
+    ExpectProgress(99);
     // clang-format off
     EXPECT_CALL(br_, SendShellCommand(kTransportLocal, "HannibalLecter", "bugreportz -p", false, _))
         // NOTE: DoAll accepts at most 10 arguments, and we're almost reached that limit...
@@ -283,21 +283,23 @@
 // Tests 'adb bugreport file.zip' when it succeeds and displays progress, even if progress recedes.
 TEST_F(BugreportTest, OkProgressAlwaysForward) {
     ExpectBugreportzVersion("1.1");
-    ExpectProgress(1, 100);
-    ExpectProgress(50, 100);
-    ExpectProgress(75, 100);
+    ExpectProgress(1);
+    ExpectProgress(50);
+    ExpectProgress(75);
     // clang-format off
     EXPECT_CALL(br_, SendShellCommand(kTransportLocal, "HannibalLecter", "bugreportz -p", false, _))
         // NOTE: DoAll accepts at most 10 arguments, and we're almost reached that limit...
         .WillOnce(DoAll(
             WithArg<4>(WriteOnStdout("BEGIN:/device/bugreport.zip\n")),
-            WithArg<4>(WriteOnStdout("PROGRESS:1/100\n")),
-            WithArg<4>(WriteOnStdout("PROGRESS:50/100\n")),
-            // 25 should be ignored becaused it receded.
-            WithArg<4>(WriteOnStdout("PROGRESS:25/100\n")),
-            WithArg<4>(WriteOnStdout("PROGRESS:75/100\n")),
-            // 75 should be ignored becaused it didn't change.
-            WithArg<4>(WriteOnStdout("PROGRESS:75/100\n")),
+            WithArg<4>(WriteOnStdout("PROGRESS:1/100\n")), // 1%
+            WithArg<4>(WriteOnStdout("PROGRESS:50/100\n")), // 50%
+            // 25% should be ignored becaused it receded.
+            WithArg<4>(WriteOnStdout("PROGRESS:25/100\n")), // 25%
+            WithArg<4>(WriteOnStdout("PROGRESS:75/100\n")), // 75%
+            // 75% should be ignored becaused it didn't change.
+            WithArg<4>(WriteOnStdout("PROGRESS:75/100\n")), // 75%
+            // Try a receeding percentage with a different max progress
+            WithArg<4>(WriteOnStdout("PROGRESS:700/1000\n")), // 70%
             WithArg<4>(WriteOnStdout("OK:/device/bugreport.zip")),
             WithArg<4>(ReturnCallbackDone())));
     // clang-format on