-71.75% is the change from 839 to 237
Calculation steps:
[( 237 - 839 ) ÷ 839] x 100 = -71.75%
Formula
Percentage change = [(237 - 839) / 839] x 100
Subtract the new number by the original number
237 - 839 = -602
-602 ÷ 839 = -0.7175208581644815
-0.7175208581644815 x 100 = -71.75%