70.53% is the change from 302 to 515
Calculation steps:
[( 515 - 302 ) ÷ 302] x 100 = 70.53%
Formula
Percentage change = [(515 - 302) / 302] x 100
Subtract the new number by the original number
515 - 302 = 213
213 ÷ 302 = 0.7052980132450332
0.7052980132450332 x 100 = 70.53%