19.68% is the change from 681 to 815
Calculation steps:
[( 815 - 681 ) ÷ 681] x 100 = 19.68%
Formula
Percentage change = [(815 - 681) / 681] x 100
Subtract the new number by the original number
815 - 681 = 134
134 ÷ 681 = 0.19676945668135096
0.19676945668135096 x 100 = 19.68%