I have a completed T2200 from my employer due to the home office requirements for my job.
For "Percentage (%) of home being used for personal purposes" I have entered 10%.
For simplicity I have entered (for now), $10,000, under the line items "Total home expenses incurred (both business and personal use)".
When I generate my results I am expecting to see a $1,000 tax credit. Instead I am seeing $9,000 which seems to be interpreting the 10% as non-office use and 90% is office use.
This seems straightforward to me and would assume many have completed this schedule before.