341.01% is the change from 217 to 957
Calculation steps:
[( 957 - 217 ) ÷ 217] x 100 = 341.01%
Formula
Percentage change = [(957 - 217) / 217] x 100
Subtract the new number by the original number
957 - 217 = 740
740 ÷ 217 = 3.410138248847926
3.410138248847926 x 100 = 341.01%