-91.78% is the change from 146 to 12
Calculation steps:
[( 12 - 146 ) ÷ 146] x 100 = -91.78%
Formula
Percentage change = [(12 - 146) / 146] x 100
Subtract the new number by the original number
12 - 146 = -134
-134 ÷ 146 = -0.9178082191780822
-0.9178082191780822 x 100 = -91.78%