-20.02% is the change from 939 to 751
Calculation steps:
[( 751 - 939 ) ÷ 939] x 100 = -20.02%
Formula
Percentage change = [(751 - 939) / 939] x 100
Subtract the new number by the original number
751 - 939 = -188
-188 ÷ 939 = -0.20021299254526093
-0.20021299254526093 x 100 = -20.02%