75.17% is the change from 294 to 515
Calculation steps:
[( 515 - 294 ) ÷ 294] x 100 = 75.17%
Formula
Percentage change = [(515 - 294) / 294] x 100
Subtract the new number by the original number
515 - 294 = 221
221 ÷ 294 = 0.7517006802721088
0.7517006802721088 x 100 = 75.17%