Reading 12- How to take percentages in regression equations etc

Dear

In mutiple regression many cases like q no 11 pn page no 368 cfa book we are giving percentage say= 1.6%

Now when doing making equations or checking hetroskedecity etc will we take it as 1.6 or 1.6/100.

I am totally confused as in some place they dont divide by 100 and in some place they divide by 100 crying

blush