81.35% is the change from 252 to 457
Calculation steps:
[( 457 - 252 ) ÷ 252] x 100 = 81.35%
Formula
Percentage change = [(457 - 252) / 252] x 100
Subtract the new number by the original number
457 - 252 = 205
205 ÷ 252 = 0.8134920634920635
0.8134920634920635 x 100 = 81.35%