-99.79% is the change from 939 to 2
Calculation steps:
[( 2 - 939 ) ÷ 939] x 100 = -99.79%
Formula
Percentage change = [(2 - 939) / 939] x 100
Subtract the new number by the original number
2 - 939 = -937
-937 ÷ 939 = -0.9978700745473909
-0.9978700745473909 x 100 = -99.79%