-56.92% is the change from 520 to 224
Calculation steps:
[( 224 - 520 ) ÷ 520] x 100 = -56.92%
Formula
Percentage change = [(224 - 520) / 520] x 100
Subtract the new number by the original number
224 - 520 = -296
-296 ÷ 520 = -0.5692307692307692
-0.5692307692307692 x 100 = -56.92%