-46.78% is the change from 977 to 520
Calculation steps:
[( 520 - 977 ) ÷ 977] x 100 = -46.78%
Formula
Percentage change = [(520 - 977) / 977] x 100
Subtract the new number by the original number
520 - 977 = -457
-457 ÷ 977 = -0.4677584442169908
-0.4677584442169908 x 100 = -46.78%