In the past I’ve calculated our daycare T/S based on total square feet in the house vs the daycare space. The number I’ve use for the total sq ft is from real estate and re-finance measurements (1,900 ft2). For the daycare space I’ve used inside measurements of each room. What I just realized, I believe the 1,900 ft2 is based on the outside perimeter of the house, (first and second stories). This includes a lot of dead space (under stairs, wall thickness etc.). Which would mean the proportion of house used for daycare is more than I've claimed. Should I re-measure the house based on inside usable space? Or am I missing something.
Thank you,

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