-87.36% is the change from 973 to 123
Calculation steps:
[( 123 - 973 ) ÷ 973] x 100 = -87.36%
Formula
Percentage change = [(123 - 973) / 973] x 100
Subtract the new number by the original number
123 - 973 = -850
-850 ÷ 973 = -0.8735868448098664
-0.8735868448098664 x 100 = -87.36%