-82.51% is the change from 829 to 145
Calculation steps:
[( 145 - 829 ) ÷ 829] x 100 = -82.51%
Formula
Percentage change = [(145 - 829) / 829] x 100
Subtract the new number by the original number
145 - 829 = -684
-684 ÷ 829 = -0.8250904704463209
-0.8250904704463209 x 100 = -82.51%