7.54% is the change from 809 to 870
Calculation steps:
[( 870 - 809 ) ÷ 809] x 100 = 7.54%
Formula
Percentage change = [(870 - 809) / 809] x 100
Subtract the new number by the original number
870 - 809 = 61
61 ÷ 809 = 0.0754017305315204
0.0754017305315204 x 100 = 7.54%