2493.75% is the change from 16 to 415
Calculation steps:
[( 415 - 16 ) ÷ 16] x 100 = 2493.75%
Formula
Percentage change = [(415 - 16) / 16] x 100
Subtract the new number by the original number
415 - 16 = 399
399 ÷ 16 = 24.9375
24.9375 x 100 = 2493.75%