-87.23% is the change from 963 to 123
Calculation steps:
[( 123 - 963 ) ÷ 963] x 100 = -87.23%
Formula
Percentage change = [(123 - 963) / 963] x 100
Subtract the new number by the original number
123 - 963 = -840
-840 ÷ 963 = -0.8722741433021807
-0.8722741433021807 x 100 = -87.23%