31.2% is the change from 516 to 677
Calculation steps:
[( 677 - 516 ) ÷ 516] x 100 = 31.2%
Formula
Percentage change = [(677 - 516) / 516] x 100
Subtract the new number by the original number
677 - 516 = 161
161 ÷ 516 = 0.312015503875969
0.312015503875969 x 100 = 31.2%