-94.29% is the change from 140 to 8
Calculation steps:
[( 8 - 140 ) ÷ 140] x 100 = -94.29%
Formula
Percentage change = [(8 - 140) / 140] x 100
Subtract the new number by the original number
8 - 140 = -132
-132 ÷ 140 = -0.9428571428571428
-0.9428571428571428 x 100 = -94.29%