39.92% is the change from 511 to 715
Calculation steps:
[( 715 - 511 ) ÷ 511] x 100 = 39.92%
Formula
Percentage change = [(715 - 511) / 511] x 100
Subtract the new number by the original number
715 - 511 = 204
204 ÷ 511 = 0.39921722113502933
0.39921722113502933 x 100 = 39.92%