25.9% is the change from 691 to 870
Calculation steps:
[( 870 - 691 ) ÷ 691] x 100 = 25.9%
Formula
Percentage change = [(870 - 691) / 691] x 100
Subtract the new number by the original number
870 - 691 = 179
179 ÷ 691 = 0.2590448625180897
0.2590448625180897 x 100 = 25.9%