24.29% is the change from 700 to 870
Calculation steps:
[( 870 - 700 ) ÷ 700] x 100 = 24.29%
Formula
Percentage change = [(870 - 700) / 700] x 100
Subtract the new number by the original number
870 - 700 = 170
170 ÷ 700 = 0.24285714285714285
0.24285714285714285 x 100 = 24.29%