33.66% is the change from 511 to 683
Calculation steps:
[( 683 - 511 ) ÷ 511] x 100 = 33.66%
Formula
Percentage change = [(683 - 511) / 511] x 100
Subtract the new number by the original number
683 - 511 = 172
172 ÷ 511 = 0.33659491193737767
0.33659491193737767 x 100 = 33.66%