-96.62% is the change from 355 to 12
Calculation steps:
[( 12 - 355 ) ÷ 355] x 100 = -96.62%
Formula
Percentage change = [(12 - 355) / 355] x 100
Subtract the new number by the original number
12 - 355 = -343
-343 ÷ 355 = -0.9661971830985916
-0.9661971830985916 x 100 = -96.62%