2456.25% is the change from 16 to 409
Calculation steps:
[( 409 - 16 ) ÷ 16] x 100 = 2456.25%
Formula
Percentage change = [(409 - 16) / 16] x 100
Subtract the new number by the original number
409 - 16 = 393
393 ÷ 16 = 24.5625
24.5625 x 100 = 2456.25%