-87.07% is the change from 843 to 109
Calculation steps:
[( 109 - 843 ) ÷ 843] x 100 = -87.07%
Formula
Percentage change = [(109 - 843) / 843] x 100
Subtract the new number by the original number
109 - 843 = -734
-734 ÷ 843 = -0.8706998813760379
-0.8706998813760379 x 100 = -87.07%