51.13% is the change from 442 to 668
Calculation steps:
[( 668 - 442 ) ÷ 442] x 100 = 51.13%
Formula
Percentage change = [(668 - 442) / 442] x 100
Subtract the new number by the original number
668 - 442 = 226
226 ÷ 442 = 0.5113122171945701
0.5113122171945701 x 100 = 51.13%