-97.37% is the change from 456 to 12
Calculation steps:
[( 12 - 456 ) ÷ 456] x 100 = -97.37%
Formula
Percentage change = [(12 - 456) / 456] x 100
Subtract the new number by the original number
12 - 456 = -444
-444 ÷ 456 = -0.9736842105263158
-0.9736842105263158 x 100 = -97.37%