3775% is the change from 16 to 620
Calculation steps:
[( 620 - 16 ) ÷ 16] x 100 = 3775%
Formula
Percentage change = [(620 - 16) / 16] x 100
Subtract the new number by the original number
620 - 16 = 604
604 ÷ 16 = 37.75
37.75 x 100 = 3775%
Example