-15.12% is the change from 939 to 797
Calculation steps:
[( 797 - 939 ) ÷ 939] x 100 = -15.12%
Formula
Percentage change = [(797 - 939) / 939] x 100
Subtract the new number by the original number
797 - 939 = -142
-142 ÷ 939 = -0.15122470713525027
-0.15122470713525027 x 100 = -15.12%