-43.11% is the change from 921 to 524
Calculation steps:
[( 524 - 921 ) ÷ 921] x 100 = -43.11%
Formula
Percentage change = [(524 - 921) / 921] x 100
Subtract the new number by the original number
524 - 921 = -397
-397 ÷ 921 = -0.43105320304017375
-0.43105320304017375 x 100 = -43.11%