-33.4% is the change from 973 to 648
Calculation steps:
[( 648 - 973 ) ÷ 973] x 100 = -33.4%
Formula
Percentage change = [(648 - 973) / 973] x 100
Subtract the new number by the original number
648 - 973 = -325
-325 ÷ 973 = -0.3340184994861254
-0.3340184994861254 x 100 = -33.4%