19.46% is the change from 668 to 798
Calculation steps:
[( 798 - 668 ) ÷ 668] x 100 = 19.46%
Formula
Percentage change = [(798 - 668) / 668] x 100
Subtract the new number by the original number
798 - 668 = 130
130 ÷ 668 = 0.19461077844311378
0.19461077844311378 x 100 = 19.46%