211.27% is the change from 71 to 221
Calculation steps:
[( 221 - 71 ) ÷ 71] x 100 = 211.27%
Formula
Percentage change = [(221 - 71) / 71] x 100
Subtract the new number by the original number
221 - 71 = 150
150 ÷ 71 = 2.112676056338028
2.112676056338028 x 100 = 211.27%