2437.5% is the change from 16 to 406
Calculation steps:
[( 406 - 16 ) ÷ 16] x 100 = 2437.5%
Formula
Percentage change = [(406 - 16) / 16] x 100
Subtract the new number by the original number
406 - 16 = 390
390 ÷ 16 = 24.375
24.375 x 100 = 2437.5%
Example