-96.24% is the change from 319 to 12
Calculation steps:
[( 12 - 319 ) ÷ 319] x 100 = -96.24%
Formula
Percentage change = [(12 - 319) / 319] x 100
Subtract the new number by the original number
12 - 319 = -307
-307 ÷ 319 = -0.9623824451410659
-0.9623824451410659 x 100 = -96.24%