-27.4% is the change from 73 to 53
Calculation steps:
[( 53 - 73 ) ÷ 73] x 100 = -27.4%
Formula
Percentage change = [(53 - 73) / 73] x 100
Subtract the new number by the original number
53 - 73 = -20
-20 ÷ 73 = -0.273972602739726
-0.273972602739726 x 100 = -27.4%