77.49% is the change from 271 to 481
Calculation steps:
[( 481 - 271 ) ÷ 271] x 100 = 77.49%
Formula
Percentage change = [(481 - 271) / 271] x 100
Subtract the new number by the original number
481 - 271 = 210
210 ÷ 271 = 0.7749077490774908
0.7749077490774908 x 100 = 77.49%