-89.42% is the change from 312 to 33
Calculation steps:
[( 33 - 312 ) ÷ 312] x 100 = -89.42%
Formula
Percentage change = [(33 - 312) / 312] x 100
Subtract the new number by the original number
33 - 312 = -279
-279 ÷ 312 = -0.8942307692307693
-0.8942307692307693 x 100 = -89.42%