From a0d5be66184a71d6deeaa08f0e0cb6c1be590543 Mon Sep 17 00:00:00 2001
From: David Hendriks <davidhendriks93@gmail.com>
Date: Tue, 28 Jan 2020 17:32:37 +0000
Subject: [PATCH] corrected mistake

---
 binarycpython/utils/grid.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/binarycpython/utils/grid.py b/binarycpython/utils/grid.py
index 92fe6265a..d55aae0b5 100644
--- a/binarycpython/utils/grid.py
+++ b/binarycpython/utils/grid.py
@@ -618,8 +618,8 @@ class Population(object):
         print("with mp: {} systems took {}s".format(amt, stop_mp - start_mp))
 
         #########################################################
-        duration_no_mp = start_no_mp - stop_no_mp
-        duration_mp = start_mp - stop_mp
+        duration_no_mp = stop_no_mp - start_no_mp
+        duration_mp = stop_mp - start_mp 
         ratio = duration_no_mp/duration_mp
         print(
             "Running mp versus no mp is {} times faster!".format(
-- 
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