-4.15% is the change from 939 to 900
Calculation steps:
[( 900 - 939 ) ÷ 939] x 100 = -4.15%
Formula
Percentage change = [(900 - 939) / 939] x 100
Subtract the new number by the original number
900 - 939 = -39
-39 ÷ 939 = -0.04153354632587859
-0.04153354632587859 x 100 = -4.15%