3956.25% is the change from 16 to 649
Calculation steps:
[( 649 - 16 ) ÷ 16] x 100 = 3956.25%
Formula
Percentage change = [(649 - 16) / 16] x 100
Subtract the new number by the original number
649 - 16 = 633
633 ÷ 16 = 39.5625
39.5625 x 100 = 3956.25%