19.31% is the change from 813 to 970
Calculation steps:
[( 970 - 813 ) ÷ 813] x 100 = 19.31%
Formula
Percentage change = [(970 - 813) / 813] x 100
Subtract the new number by the original number
970 - 813 = 157
157 ÷ 813 = 0.1931119311193112
0.1931119311193112 x 100 = 19.31%