17.87% is the change from 705 to 831
Calculation steps:
[( 831 - 705 ) ÷ 705] x 100 = 17.87%
Formula
Percentage change = [(831 - 705) / 705] x 100
Subtract the new number by the original number
831 - 705 = 126
126 ÷ 705 = 0.17872340425531916
0.17872340425531916 x 100 = 17.87%