61.05% is the change from 516 to 831
Calculation steps:
[( 831 - 516 ) ÷ 516] x 100 = 61.05%
Formula
Percentage change = [(831 - 516) / 516] x 100
Subtract the new number by the original number
831 - 516 = 315
315 ÷ 516 = 0.6104651162790697
0.6104651162790697 x 100 = 61.05%