2343.75% is the change from 16 to 391
Calculation steps:
[( 391 - 16 ) ÷ 16] x 100 = 2343.75%
Formula
Percentage change = [(391 - 16) / 16] x 100
Subtract the new number by the original number
391 - 16 = 375
375 ÷ 16 = 23.4375
23.4375 x 100 = 2343.75%