-29.92% is the change from 839 to 588
Calculation steps:
[( 588 - 839 ) ÷ 839] x 100 = -29.92%
Formula
Percentage change = [(588 - 839) / 839] x 100
Subtract the new number by the original number
588 - 839 = -251
-251 ÷ 839 = -0.29916567342073896
-0.29916567342073896 x 100 = -29.92%