2600% is the change from 19 to 513
Calculation steps:
[( 513 - 19 ) ÷ 19] x 100 = 2600%
Formula
Percentage change = [(513 - 19) / 19] x 100
Subtract the new number by the original number
513 - 19 = 494
494 ÷ 19 = 26
26 x 100 = 2600%
Example