-51.7% is the change from 470 to 227
Calculation steps:
[( 227 - 470 ) ÷ 470] x 100 = -51.7%
Formula
Percentage change = [(227 - 470) / 470] x 100
Subtract the new number by the original number
227 - 470 = -243
-243 ÷ 470 = -0.5170212765957447
-0.5170212765957447 x 100 = -51.7%