-84% is the change from 931 to 149
Calculation steps:
[( 149 - 931 ) ÷ 931] x 100 = -84%
Formula
Percentage change = [(149 - 931) / 931] x 100
Subtract the new number by the original number
149 - 931 = -782
-782 ÷ 931 = -0.8399570354457573
-0.8399570354457573 x 100 = -84%