-89.72% is the change from 973 to 100
Calculation steps:
[( 100 - 973 ) ÷ 973] x 100 = -89.72%
Formula
Percentage change = [(100 - 973) / 973] x 100
Subtract the new number by the original number
100 - 973 = -873
-873 ÷ 973 = -0.8972250770811921
-0.8972250770811921 x 100 = -89.72%