67.88% is the change from 302 to 507
Calculation steps:
[( 507 - 302 ) ÷ 302] x 100 = 67.88%
Formula
Percentage change = [(507 - 302) / 302] x 100
Subtract the new number by the original number
507 - 302 = 205
205 ÷ 302 = 0.6788079470198676
0.6788079470198676 x 100 = 67.88%