63.37% is the change from 404 to 660
Calculation steps:
[( 660 - 404 ) ÷ 404] x 100 = 63.37%
Formula
Percentage change = [(660 - 404) / 404] x 100
Subtract the new number by the original number
660 - 404 = 256
256 ÷ 404 = 0.6336633663366337
0.6336633663366337 x 100 = 63.37%