-83.14% is the change from 860 to 145
Calculation steps:
[( 145 - 860 ) ÷ 860] x 100 = -83.14%
Formula
Percentage change = [(145 - 860) / 860] x 100
Subtract the new number by the original number
145 - 860 = -715
-715 ÷ 860 = -0.8313953488372093
-0.8313953488372093 x 100 = -83.14%