3.32% is the change from 271 to 280
Calculation steps:
[( 280 - 271 ) ÷ 271] x 100 = 3.32%
Formula
Percentage change = [(280 - 271) / 271] x 100
Subtract the new number by the original number
280 - 271 = 9
9 ÷ 271 = 0.033210332103321034
0.033210332103321034 x 100 = 3.32%