27.8% is the change from 687 to 878
Calculation steps:
[( 878 - 687 ) ÷ 687] x 100 = 27.8%
Formula
Percentage change = [(878 - 687) / 687] x 100
Subtract the new number by the original number
878 - 687 = 191
191 ÷ 687 = 0.2780203784570597
0.2780203784570597 x 100 = 27.8%