34.67% is the change from 721 to 971
Calculation steps:
[( 971 - 721 ) ÷ 721] x 100 = 34.67%
Formula
Percentage change = [(971 - 721) / 721] x 100
Subtract the new number by the original number
971 - 721 = 250
250 ÷ 721 = 0.34674063800277394
0.34674063800277394 x 100 = 34.67%