-17.2% is the change from 186 to 154
Calculation steps:
[( 154 - 186 ) ÷ 186] x 100 = -17.2%
Formula
Percentage change = [(154 - 186) / 186] x 100
Subtract the new number by the original number
154 - 186 = -32
-32 ÷ 186 = -0.17204301075268819
-0.17204301075268819 x 100 = -17.2%