20.8% is the change from 673 to 813
Calculation steps:
[( 813 - 673 ) ÷ 673] x 100 = 20.8%
Formula
Percentage change = [(813 - 673) / 673] x 100
Subtract the new number by the original number
813 - 673 = 140
140 ÷ 673 = 0.20802377414561665
0.20802377414561665 x 100 = 20.8%