-13.1% is the change from 84 to 73
Calculation steps:
[( 73 - 84 ) ÷ 84] x 100 = -13.1%
Formula
Percentage change = [(73 - 84) / 84] x 100
Subtract the new number by the original number
73 - 84 = -11
-11 ÷ 84 = -0.13095238095238096
-0.13095238095238096 x 100 = -13.1%