-95.74% is the change from 939 to 40
Calculation steps:
[( 40 - 939 ) ÷ 939] x 100 = -95.74%
Formula
Percentage change = [(40 - 939) / 939] x 100
Subtract the new number by the original number
40 - 939 = -899
-899 ÷ 939 = -0.9574014909478168
-0.9574014909478168 x 100 = -95.74%