-91.84% is the change from 147 to 12
Calculation steps:
[( 12 - 147 ) ÷ 147] x 100 = -91.84%
Formula
Percentage change = [(12 - 147) / 147] x 100
Subtract the new number by the original number
12 - 147 = -135
-135 ÷ 147 = -0.9183673469387755
-0.9183673469387755 x 100 = -91.84%