-27.77% is the change from 839 to 606
Calculation steps:
[( 606 - 839 ) ÷ 839] x 100 = -27.77%
Formula
Percentage change = [(606 - 839) / 839] x 100
Subtract the new number by the original number
606 - 839 = -233
-233 ÷ 839 = -0.27771156138259834
-0.27771156138259834 x 100 = -27.77%