353.74% is the change from 214 to 971
Calculation steps:
[( 971 - 214 ) ÷ 214] x 100 = 353.74%
Formula
Percentage change = [(971 - 214) / 214] x 100
Subtract the new number by the original number
971 - 214 = 757
757 ÷ 214 = 3.5373831775700935
3.5373831775700935 x 100 = 353.74%