28.13% is the change from 679 to 870
Calculation steps:
[( 870 - 679 ) ÷ 679] x 100 = 28.13%
Formula
Percentage change = [(870 - 679) / 679] x 100
Subtract the new number by the original number
870 - 679 = 191
191 ÷ 679 = 0.2812960235640648
0.2812960235640648 x 100 = 28.13%