-53.19% is the change from 470 to 220
Calculation steps:
[( 220 - 470 ) ÷ 470] x 100 = -53.19%
Formula
Percentage change = [(220 - 470) / 470] x 100
Subtract the new number by the original number
220 - 470 = -250
-250 ÷ 470 = -0.5319148936170213
-0.5319148936170213 x 100 = -53.19%