-82.63% is the change from 835 to 145
Calculation steps:
[( 145 - 835 ) ÷ 835] x 100 = -82.63%
Formula
Percentage change = [(145 - 835) / 835] x 100
Subtract the new number by the original number
145 - 835 = -690
-690 ÷ 835 = -0.8263473053892215
-0.8263473053892215 x 100 = -82.63%