-96.51% is the change from 344 to 12
Calculation steps:
[( 12 - 344 ) ÷ 344] x 100 = -96.51%
Formula
Percentage change = [(12 - 344) / 344] x 100
Subtract the new number by the original number
12 - 344 = -332
-332 ÷ 344 = -0.9651162790697675
-0.9651162790697675 x 100 = -96.51%