-10.81% is the change from 74 to 66
Calculation steps:
[( 66 - 74 ) ÷ 74] x 100 = -10.81%
Formula
Percentage change = [(66 - 74) / 74] x 100
Subtract the new number by the original number
66 - 74 = -8
-8 ÷ 74 = -0.10810810810810811
-0.10810810810810811 x 100 = -10.81%