66.93% is the change from 511 to 853
Calculation steps:
[( 853 - 511 ) ÷ 511] x 100 = 66.93%
Formula
Percentage change = [(853 - 511) / 511] x 100
Subtract the new number by the original number
853 - 511 = 342
342 ÷ 511 = 0.6692759295499021
0.6692759295499021 x 100 = 66.93%