-21.3% is the change from 939 to 739
Calculation steps:
[( 739 - 939 ) ÷ 939] x 100 = -21.3%
Formula
Percentage change = [(739 - 939) / 939] x 100
Subtract the new number by the original number
739 - 939 = -200
-200 ÷ 939 = -0.21299254526091588
-0.21299254526091588 x 100 = -21.3%