in $1998$ swifty company completed the construction of the building at a cost of $$4,120,000$ and first occupied it in January $1999.$ it was estimated that the building will have a useful life of $40$ years and a salvage value of $$201,800$ at the end of that time. early in $2007,$ an addition to the building was constructed at a cost of $$1,545,000.$ at that time it was estimated that the remaining life of the building would be$,$ as originally estimated, an additional $32$ years, and that the addition would have a life of $32$ years, and a salvage value of $$21,800.$ in $2027,$ it is determined that the probable life of the building and addition will extend to the end of $2048$ or $10$ years beyond the original estimate. using the straight line method, compute the annual depreciation that would have been charged from $1999$ through $2006.$