-42.35% is the change from 902 to 520
Calculation steps:
[( 520 - 902 ) ÷ 902] x 100 = -42.35%
Formula
Percentage change = [(520 - 902) / 902] x 100
Subtract the new number by the original number
520 - 902 = -382
-382 ÷ 902 = -0.42350332594235035
-0.42350332594235035 x 100 = -42.35%