-43.86% is the change from 928 to 521
Calculation steps:
[( 521 - 928 ) ÷ 928] x 100 = -43.86%
Formula
Percentage change = [(521 - 928) / 928] x 100
Subtract the new number by the original number
521 - 928 = -407
-407 ÷ 928 = -0.4385775862068966
-0.4385775862068966 x 100 = -43.86%