diff --git a/main.py b/main.py
index 986df1e..f345289 100644
--- a/main.py
+++ b/main.py
@@ -38,8 +38,8 @@ def sending_file_progress(filename: bytes, size: int, sent: int) -> None:
         def return_diff(n1, n2, percent=100) -> int:
             if n1 > n2:
                 return n1 - int((n1 - n2) * (percent / 100))
-            elif n2 > n1:
-                return n2 - int((n2 - n1) * (percent / 100))
+            elif n1 < n2:
+                return n1 + int((n2 - n1) * (percent / 100))
             return n1
 
         new_rgb = RGB(r=return_diff(c1.r, c2.r, percent), g=return_diff(c1.g, c2.g, percent),
diff --git a/test_barr.py b/test_barr.py
index 759cd1d..c23b403 100644
--- a/test_barr.py
+++ b/test_barr.py
@@ -1,8 +1,6 @@
 from main import sending_file_progress
-from time import  sleep
+from time import sleep
 
-
-
-for x in range(1,100):
+for x in range(1, 100):
     sending_file_progress(filename=b"file", size=100, sent=x)
-    sleep(0.05)
\ No newline at end of file
+    sleep(0.05)