66.86% is the change from 516 to 861
Calculation steps:
[( 861 - 516 ) ÷ 516] x 100 = 66.86%
Formula
Percentage change = [(861 - 516) / 516] x 100
Subtract the new number by the original number
861 - 516 = 345
345 ÷ 516 = 0.6686046511627907
0.6686046511627907 x 100 = 66.86%