-82.6% is the change from 839 to 146
Calculation steps:
[( 146 - 839 ) ÷ 839] x 100 = -82.6%
Formula
Percentage change = [(146 - 839) / 839] x 100
Subtract the new number by the original number
146 - 839 = -693
-693 ÷ 839 = -0.8259833134684148
-0.8259833134684148 x 100 = -82.6%