diff --git a/articles/hand-opt-simplex-2d/page.mmd b/articles/hand-opt-simplex-2d/page.mmd
index bc194db..647713c 100644
--- a/articles/hand-opt-simplex-2d/page.mmd
+++ b/articles/hand-opt-simplex-2d/page.mmd
@@ -35,7 +35,7 @@ Benchmark Iterations    Min(ns)    Max(ns)   Variance   Mean(ns)
 full(0)          100  119354512  731397135 3705581696928414  125714847
 ```
 
-Mean difference is `3ms 522µs 206ns`, min difference is `5ms 493µs 883ns`.
+Mean difference is `3ms 522µs 206ns (-2.7%)`, min difference is `5ms 493µs 883ns (-4.4%)`
 
 This suggests that given driver is suboptimal in its optimizing capabilities,
 and I imagine there might be GLSL compilers a lot worse than this.