68.27% is the change from 271 to 456
Calculation steps:
[( 456 - 271 ) ÷ 271] x 100 = 68.27%
Formula
Percentage change = [(456 - 271) / 271] x 100
Subtract the new number by the original number
456 - 271 = 185
185 ÷ 271 = 0.6826568265682657
0.6826568265682657 x 100 = 68.27%