diff --git a/digital_image_processing/dithering/burkes.py b/digital_image_processing/dithering/burkes.py
index 0804104ab..b367a1acd 100644
--- a/digital_image_processing/dithering/burkes.py
+++ b/digital_image_processing/dithering/burkes.py
@@ -41,7 +41,7 @@ class Burkes:
         >>> Burkes.get_greyscale(3, 4, 5)
         3.753
         """
-        return 0.114 * blue + 0.587 * green + 0.2126 * red
+        return 0.114 * blue + 0.587 * green + 0.299 * red
 
     def process(self) -> None:
         for y in range(self.height):
@@ -49,10 +49,10 @@ class Burkes:
                 greyscale = int(self.get_greyscale(*self.input_img[y][x]))
                 if self.threshold > greyscale + self.error_table[y][x]:
                     self.output_img[y][x] = (0, 0, 0)
-                    current_error = greyscale + self.error_table[x][y]
+                    current_error = greyscale + self.error_table[y][x]
                 else:
                     self.output_img[y][x] = (255, 255, 255)
-                    current_error = greyscale + self.error_table[x][y] - 255
+                    current_error = greyscale + self.error_table[y][x] - 255
                 """
                 Burkes error propagation (`*` is current pixel):