117.69% is the change from 294 to 640
Calculation steps:
[( 640 - 294 ) ÷ 294] x 100 = 117.69%
Formula
Percentage change = [(640 - 294) / 294] x 100
Subtract the new number by the original number
640 - 294 = 346
346 ÷ 294 = 1.1768707482993197
1.1768707482993197 x 100 = 117.69%