-7.04% is the change from 71 to 66
Calculation steps:
[( 66 - 71 ) ÷ 71] x 100 = -7.04%
Formula
Percentage change = [(66 - 71) / 71] x 100
Subtract the new number by the original number
66 - 71 = -5
-5 ÷ 71 = -0.07042253521126761
-0.07042253521126761 x 100 = -7.04%