-23.61% is the change from 72 to 55
Calculation steps:
[( 55 - 72 ) ÷ 72] x 100 = -23.61%
Formula
Percentage change = [(55 - 72) / 72] x 100
Subtract the new number by the original number
55 - 72 = -17
-17 ÷ 72 = -0.2361111111111111
-0.2361111111111111 x 100 = -23.61%