381.25% is the change from 16 to 77
Calculation steps:
[( 77 - 16 ) ÷ 16] x 100 = 381.25%
Formula
Percentage change = [(77 - 16) / 16] x 100
Subtract the new number by the original number
77 - 16 = 61
61 ÷ 16 = 3.8125
3.8125 x 100 = 381.25%
Example