29.46% is the change from 672 to 870
Calculation steps:
[( 870 - 672 ) ÷ 672] x 100 = 29.46%
Formula
Percentage change = [(870 - 672) / 672] x 100
Subtract the new number by the original number
870 - 672 = 198
198 ÷ 672 = 0.29464285714285715
0.29464285714285715 x 100 = 29.46%