3862.5% is the change from 16 to 634
Calculation steps:
[( 634 - 16 ) ÷ 16] x 100 = 3862.5%
Formula
Percentage change = [(634 - 16) / 16] x 100
Subtract the new number by the original number
634 - 16 = 618
618 ÷ 16 = 38.625
38.625 x 100 = 3862.5%
Example