2107.69% is the change from 13 to 287
Calculation steps:
[( 287 - 13 ) ÷ 13] x 100 = 2107.69%
Formula
Percentage change = [(287 - 13) / 13] x 100
Subtract the new number by the original number
287 - 13 = 274
274 ÷ 13 = 21.076923076923077
21.076923076923077 x 100 = 2107.69%