-96.57% is the change from 350 to 12
Calculation steps:
[( 12 - 350 ) ÷ 350] x 100 = -96.57%
Formula
Percentage change = [(12 - 350) / 350] x 100
Subtract the new number by the original number
12 - 350 = -338
-338 ÷ 350 = -0.9657142857142857
-0.9657142857142857 x 100 = -96.57%