-37.88% is the change from 66 to 41
Calculation steps:
[( 41 - 66 ) ÷ 66] x 100 = -37.88%
Formula
Percentage change = [(41 - 66) / 66] x 100
Subtract the new number by the original number
41 - 66 = -25
-25 ÷ 66 = -0.3787878787878788
-0.3787878787878788 x 100 = -37.88%