2589.47% is the change from 19 to 511
Calculation steps:
[( 511 - 19 ) ÷ 19] x 100 = 2589.47%
Formula
Percentage change = [(511 - 19) / 19] x 100
Subtract the new number by the original number
511 - 19 = 492
492 ÷ 19 = 25.894736842105264
25.894736842105264 x 100 = 2589.47%