21.59% is the change from 681 to 828
Calculation steps:
[( 828 - 681 ) ÷ 681] x 100 = 21.59%
Formula
Percentage change = [(828 - 681) / 681] x 100
Subtract the new number by the original number
828 - 681 = 147
147 ÷ 681 = 0.21585903083700442
0.21585903083700442 x 100 = 21.59%