19.61% is the change from 811 to 970
Calculation steps:
[( 970 - 811 ) ÷ 811] x 100 = 19.61%
Formula
Percentage change = [(970 - 811) / 811] x 100
Subtract the new number by the original number
970 - 811 = 159
159 ÷ 811 = 0.1960542540073983
0.1960542540073983 x 100 = 19.61%