negative fractions to negative exponents

What is the proper method to solve this:

(-½)^-3

Method A:

(-½)^-3

= (-1^-3)/(2^-3)

= (2^3)/(-1^3)

= 8/-1

= -8

Method B:

(-½)^-3

= (1^-3)/(-2^-3)

= (-2^3)/(1^3)

= -8/1

= -8

Should the negative be placed in the "1" as in method A or in the "2" as in method B? This gets confusing as the question is not written in the form of (-1/2) or (1/-2) but as (-½) where the negative appeared to be shared by both 1 and 2. Or it doesn't matter?

Please help with this basic question. I never had high school math. Thanks.