-82.59% is the change from 833 to 145
Calculation steps:
[( 145 - 833 ) ÷ 833] x 100 = -82.59%
Formula
Percentage change = [(145 - 833) / 833] x 100
Subtract the new number by the original number
145 - 833 = -688
-688 ÷ 833 = -0.8259303721488596
-0.8259303721488596 x 100 = -82.59%