-73.08% is the change from 312 to 84
Calculation steps:
[( 84 - 312 ) ÷ 312] x 100 = -73.08%
Formula
Percentage change = [(84 - 312) / 312] x 100
Subtract the new number by the original number
84 - 312 = -228
-228 ÷ 312 = -0.7307692307692307
-0.7307692307692307 x 100 = -73.08%