-15.14% is the change from 839 to 712
Calculation steps:
[( 712 - 839 ) ÷ 839] x 100 = -15.14%
Formula
Percentage change = [(712 - 839) / 839] x 100
Subtract the new number by the original number
712 - 839 = -127
-127 ÷ 839 = -0.15137067938021453
-0.15137067938021453 x 100 = -15.14%