27.99% is the change from 686 to 878
Calculation steps:
[( 878 - 686 ) ÷ 686] x 100 = 27.99%
Formula
Percentage change = [(878 - 686) / 686] x 100
Subtract the new number by the original number
878 - 686 = 192
192 ÷ 686 = 0.27988338192419826
0.27988338192419826 x 100 = 27.99%