59.69% is the change from 511 to 816
Calculation steps:
[( 816 - 511 ) ÷ 511] x 100 = 59.69%
Formula
Percentage change = [(816 - 511) / 511] x 100
Subtract the new number by the original number
816 - 511 = 305
305 ÷ 511 = 0.5968688845401174
0.5968688845401174 x 100 = 59.69%