375% is the change from 12 to 57
Calculation steps:
[( 57 - 12 ) ÷ 12] x 100 = 375%
Formula
Percentage change = [(57 - 12) / 12] x 100
Subtract the new number by the original number
57 - 12 = 45
45 ÷ 12 = 3.75
3.75 x 100 = 375%
Example