4050% is the change from 16 to 664
Calculation steps:
[( 664 - 16 ) ÷ 16] x 100 = 4050%
Formula
Percentage change = [(664 - 16) / 16] x 100
Subtract the new number by the original number
664 - 16 = 648
648 ÷ 16 = 40.5
40.5 x 100 = 4050%
Example