18.88% is the change from 678 to 806
Calculation steps:
[( 806 - 678 ) ÷ 678] x 100 = 18.88%
Formula
Percentage change = [(806 - 678) / 678] x 100
Subtract the new number by the original number
806 - 678 = 128
128 ÷ 678 = 0.1887905604719764
0.1887905604719764 x 100 = 18.88%