72.45% is the change from 294 to 507
Calculation steps:
[( 507 - 294 ) ÷ 294] x 100 = 72.45%
Formula
Percentage change = [(507 - 294) / 294] x 100
Subtract the new number by the original number
507 - 294 = 213
213 ÷ 294 = 0.7244897959183674
0.7244897959183674 x 100 = 72.45%