50% is the change from 446 to 669
Calculation steps:
[( 669 - 446 ) ÷ 446] x 100 = 50%
Formula
Percentage change = [(669 - 446) / 446] x 100
Subtract the new number by the original number
669 - 446 = 223
223 ÷ 446 = 0.5
0.5 x 100 = 50%
Example