-86.13% is the change from 973 to 135
Calculation steps:
[( 135 - 973 ) ÷ 973] x 100 = -86.13%
Formula
Percentage change = [(135 - 973) / 973] x 100
Subtract the new number by the original number
135 - 973 = -838
-838 ÷ 973 = -0.8612538540596094
-0.8612538540596094 x 100 = -86.13%