72.52% is the change from 302 to 521
Calculation steps:
[( 521 - 302 ) ÷ 302] x 100 = 72.52%
Formula
Percentage change = [(521 - 302) / 302] x 100
Subtract the new number by the original number
521 - 302 = 219
219 ÷ 302 = 0.7251655629139073
0.7251655629139073 x 100 = 72.52%