-26.88% is the change from 186 to 136
Calculation steps:
[( 136 - 186 ) ÷ 186] x 100 = -26.88%
Formula
Percentage change = [(136 - 186) / 186] x 100
Subtract the new number by the original number
136 - 186 = -50
-50 ÷ 186 = -0.26881720430107525
-0.26881720430107525 x 100 = -26.88%