2484.21% is the change from 19 to 491
Calculation steps:
[( 491 - 19 ) ÷ 19] x 100 = 2484.21%
Formula
Percentage change = [(491 - 19) / 19] x 100
Subtract the new number by the original number
491 - 19 = 472
472 ÷ 19 = 24.842105263157894
24.842105263157894 x 100 = 2484.21%