2291.67% is the change from 12 to 287
Calculation steps:
[( 287 - 12 ) ÷ 12] x 100 = 2291.67%
Formula
Percentage change = [(287 - 12) / 12] x 100
Subtract the new number by the original number
287 - 12 = 275
275 ÷ 12 = 22.916666666666668
22.916666666666668 x 100 = 2291.67%