64.94% is the change from 405 to 668
Calculation steps:
[( 668 - 405 ) ÷ 405] x 100 = 64.94%
Formula
Percentage change = [(668 - 405) / 405] x 100
Subtract the new number by the original number
668 - 405 = 263
263 ÷ 405 = 0.6493827160493827
0.6493827160493827 x 100 = 64.94%