3837.5% is the change from 16 to 630
Calculation steps:
[( 630 - 16 ) ÷ 16] x 100 = 3837.5%
Formula
Percentage change = [(630 - 16) / 16] x 100
Subtract the new number by the original number
630 - 16 = 614
614 ÷ 16 = 38.375
38.375 x 100 = 3837.5%
Example