23.58% is the change from 704 to 870
Calculation steps:
[( 870 - 704 ) ÷ 704] x 100 = 23.58%
Formula
Percentage change = [(870 - 704) / 704] x 100
Subtract the new number by the original number
870 - 704 = 166
166 ÷ 704 = 0.23579545454545456
0.23579545454545456 x 100 = 23.58%