-43.24% is the change from 902 to 512
Calculation steps:
[( 512 - 902 ) ÷ 902] x 100 = -43.24%
Formula
Percentage change = [(512 - 902) / 902] x 100
Subtract the new number by the original number
512 - 902 = -390
-390 ÷ 902 = -0.43237250554323725
-0.43237250554323725 x 100 = -43.24%