3.42% is the change from 878 to 908
Calculation steps:
[( 908 - 878 ) ÷ 878] x 100 = 3.42%
Formula
Percentage change = [(908 - 878) / 878] x 100
Subtract the new number by the original number
908 - 878 = 30
30 ÷ 878 = 0.03416856492027335
0.03416856492027335 x 100 = 3.42%