1900% is the change from 26 to 520
Calculation steps:
[( 520 - 26 ) ÷ 26] x 100 = 1900%
Formula
Percentage change = [(520 - 26) / 26] x 100
Subtract the new number by the original number
520 - 26 = 494
494 ÷ 26 = 19
19 x 100 = 1900%
Example