Working from home for an employer expense question

Hi Guys,

 

I worked from home while employed by a company and for the section of my taxes asking to input Home Expenses:

-For Electricity, heat and water, what do I put for each of the fields- GST taxable; HST taxable; and Zero rated & exempt? My guess is for GST and HST taxable, it is just the full amount I paid for Electricity, heat and water and I put nothing in the “Zero rated & exempt field”. Is that correct?

-For the section, “Amounts included above that related solely to the workspace of your home”, say the total sum of the rows above was $100 and 20% of my home is my workspace. Should I then put $20 in this field?

 

Thanks!