-38.17% is the change from 841 to 520
Calculation steps:
[( 520 - 841 ) ÷ 841] x 100 = -38.17%
Formula
Percentage change = [(520 - 841) / 841] x 100
Subtract the new number by the original number
520 - 841 = -321
-321 ÷ 841 = -0.3816884661117717
-0.3816884661117717 x 100 = -38.17%