-43.29% is the change from 931 to 528
Calculation steps:
[( 528 - 931 ) ÷ 931] x 100 = -43.29%
Formula
Percentage change = [(528 - 931) / 931] x 100
Subtract the new number by the original number
528 - 931 = -403
-403 ÷ 931 = -0.43286788399570353
-0.43286788399570353 x 100 = -43.29%