-43.48% is the change from 920 to 520
Calculation steps:
[( 520 - 920 ) ÷ 920] x 100 = -43.48%
Formula
Percentage change = [(520 - 920) / 920] x 100
Subtract the new number by the original number
520 - 920 = -400
-400 ÷ 920 = -0.43478260869565216
-0.43478260869565216 x 100 = -43.48%