2283.33% is the change from 12 to 286
Calculation steps:
[( 286 - 12 ) ÷ 12] x 100 = 2283.33%
Formula
Percentage change = [(286 - 12) / 12] x 100
Subtract the new number by the original number
286 - 12 = 274
274 ÷ 12 = 22.833333333333332
22.833333333333332 x 100 = 2283.33%