2508.33% is the change from 12 to 313
Calculation steps:
[( 313 - 12 ) ÷ 12] x 100 = 2508.33%
Formula
Percentage change = [(313 - 12) / 12] x 100
Subtract the new number by the original number
313 - 12 = 301
301 ÷ 12 = 25.083333333333332
25.083333333333332 x 100 = 2508.33%