9.02% is the change from 798 to 870
Calculation steps:
[( 870 - 798 ) ÷ 798] x 100 = 9.02%
Formula
Percentage change = [(870 - 798) / 798] x 100
Subtract the new number by the original number
870 - 798 = 72
72 ÷ 798 = 0.09022556390977443
0.09022556390977443 x 100 = 9.02%