21.03% is the change from 271 to 328
Calculation steps:
[( 328 - 271 ) ÷ 271] x 100 = 21.03%
Formula
Percentage change = [(328 - 271) / 271] x 100
Subtract the new number by the original number
328 - 271 = 57
57 ÷ 271 = 0.21033210332103322
0.21033210332103322 x 100 = 21.03%