-42.78% is the change from 928 to 531
Calculation steps:
[( 531 - 928 ) ÷ 928] x 100 = -42.78%
Formula
Percentage change = [(531 - 928) / 928] x 100
Subtract the new number by the original number
531 - 928 = -397
-397 ÷ 928 = -0.42780172413793105
-0.42780172413793105 x 100 = -42.78%