-96.37% is the change from 331 to 12
Calculation steps:
[( 12 - 331 ) ÷ 331] x 100 = -96.37%
Formula
Percentage change = [(12 - 331) / 331] x 100
Subtract the new number by the original number
12 - 331 = -319
-319 ÷ 331 = -0.9637462235649547
-0.9637462235649547 x 100 = -96.37%