-28.49% is the change from 839 to 600
Calculation steps:
[( 600 - 839 ) ÷ 839] x 100 = -28.49%
Formula
Percentage change = [(600 - 839) / 839] x 100
Subtract the new number by the original number
600 - 839 = -239
-239 ÷ 839 = -0.28486293206197855
-0.28486293206197855 x 100 = -28.49%