This is conjecture.
Plus that the projected finish date of the Stantec Tower is 2yrs past the finish date of the Arena. So theres going to be ample initial carrying of the debt. The figures probably assume full leasing, continued boom economy, no unexpected costs from Arena, and are also potentially playing with numbers specifically for the Arena only and not the corollary costs, city infrastructure costs, pedway, i.e. TOTAL city costs.
Finally, if the taxbase from Stantec tower were to be solely relocation from somewhere else taxbase then what Farbrother says could have some bearing. That these are actually office space relocations from already within the city negates the tax increases to a large extent. Additonally, of the condo portion of the tower this assumes new residents to Edmonton otherwise its just people paying tax somewhere in Edmonton, that will pay tax somewhere else in Edmonton. Most of these "found" monies are in fact already had. That point strangely missing. Staples, being an investigative journalist is supposed to question that type of thing. But of course he's a shill instead.
This is the nature of fudge figures that on closer examination deserve scrutiny. I know everybody is giddy at City Hall today but you'd have to be drunk or intentionally misleading to make these kind of projections. To anybody that reads between the lines I find it a bit insulting how often aour intelligence is being questioned with these bold faced lies. Rather than being convincing or helpful this is the nature of claim that causes one to question a lot of the claims made in general.