87.7% is the change from 252 to 473
Calculation steps:
[( 473 - 252 ) ÷ 252] x 100 = 87.7%
Formula
Percentage change = [(473 - 252) / 252] x 100
Subtract the new number by the original number
473 - 252 = 221
221 ÷ 252 = 0.876984126984127
0.876984126984127 x 100 = 87.7%