23.29% is the change from 511 to 630
Calculation steps:
[( 630 - 511 ) ÷ 511] x 100 = 23.29%
Formula
Percentage change = [(630 - 511) / 511] x 100
Subtract the new number by the original number
630 - 511 = 119
119 ÷ 511 = 0.2328767123287671
0.2328767123287671 x 100 = 23.29%