49.78% is the change from 446 to 668
Calculation steps:
[( 668 - 446 ) ÷ 446] x 100 = 49.78%
Formula
Percentage change = [(668 - 446) / 446] x 100
Subtract the new number by the original number
668 - 446 = 222
222 ÷ 446 = 0.4977578475336323
0.4977578475336323 x 100 = 49.78%