19.68% is the change from 813 to 973
Calculation steps:
[( 973 - 813 ) ÷ 813] x 100 = 19.68%
Formula
Percentage change = [(973 - 813) / 813] x 100
Subtract the new number by the original number
973 - 813 = 160
160 ÷ 813 = 0.1968019680196802
0.1968019680196802 x 100 = 19.68%