32.27% is the change from 220 to 291
Calculation steps:
[( 291 - 220 ) ÷ 220] x 100 = 32.27%
Formula
Percentage change = [(291 - 220) / 220] x 100
Subtract the new number by the original number
291 - 220 = 71
71 ÷ 220 = 0.32272727272727275
0.32272727272727275 x 100 = 32.27%