-84.75% is the change from 931 to 142
Calculation steps:
[( 142 - 931 ) ÷ 931] x 100 = -84.75%
Formula
Percentage change = [(142 - 931) / 931] x 100
Subtract the new number by the original number
142 - 931 = -789
-789 ÷ 931 = -0.8474758324382384
-0.8474758324382384 x 100 = -84.75%