1 files changed, 5 insertions, 4 deletions

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index ecf853cdc0bf..e8daf5ca6fd2 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1,6 +1,7 @@
 #include "hist.h"
 #include "session.h"
 #include "sort.h"
+#include <math.h>
 
 struct callchain_param  callchain_param = {
         .mode   = CHAIN_GRAPH_REL,
@@ -494,13 +495,13 @@ static size_t hist_entry__fprintf(struct hist_entry *self,
                 double old_percent = 0, new_percent = 0, diff;
 
                 if (total > 0)
-                        old_percent = (count * 100) / total;
+                        old_percent = (count * 100.0) / total;
                 if (session->events_stats.total > 0)
-                        new_percent = (self->count * 100) / session->events_stats.total;
+                        new_percent = (self->count * 100.0) / session->events_stats.total;
 
-                diff = old_percent - new_percent;
+                diff = new_percent - old_percent;
 
-                if ((u64)diff != 0)
+                if (fabs(diff) >= 0.01)
                         snprintf(bf, sizeof(bf), "%+4.2F%%", diff);
                 else
                         snprintf(bf, sizeof(bf), " ");