-8.2% is the change from 183 to 168
Calculation steps:
[( 168 - 183 ) ÷ 183] x 100 = -8.2%
Formula
Percentage change = [(168 - 183) / 183] x 100
Subtract the new number by the original number
168 - 183 = -15
-15 ÷ 183 = -0.08196721311475409
-0.08196721311475409 x 100 = -8.2%