diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 917e36f..474a494 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -477,6 +477,15 @@
 	Display monitored tasks stored in perf data. Displaying pid/tid/ppid
 	plus the command string aligned to distinguish parent and child tasks.
 
+--percent-type::
+	Set annotation percent type from following choices:
+	  global-period, local-period, global-hits, local-hits
+
+	The local/global keywords set if the percentage is computed
+	in the scope of the function (local) or the whole data (global).
+	The period/hits keywords set the base the percentage is computed
+	on - the samples period or the number of samples (hits).
+
 include::callchain-overhead-calculation.txt[]
 
 SEE ALSO
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 02f7a3c..143542f 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1124,6 +1124,9 @@ int cmd_report(int argc, const char **argv)
 		   "Time span of interest (start,stop)"),
 	OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
 		    "Show inline function"),
+	OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
+		     "Set percent type local/global-period/hits",
+		     annotate_parse_percent_type),
 	OPT_END()
 	};
 	struct perf_data data = {