-96.05% is the change from 304 to 12
Calculation steps:
[( 12 - 304 ) ÷ 304] x 100 = -96.05%
Formula
Percentage change = [(12 - 304) / 304] x 100
Subtract the new number by the original number
12 - 304 = -292
-292 ÷ 304 = -0.9605263157894737
-0.9605263157894737 x 100 = -96.05%