-1.64% is the change from 973 to 957
Calculation steps:
[( 957 - 973 ) ÷ 973] x 100 = -1.64%
Formula
Percentage change = [(957 - 973) / 973] x 100
Subtract the new number by the original number
957 - 973 = -16
-16 ÷ 973 = -0.01644398766700925
-0.01644398766700925 x 100 = -1.64%