The PIA for someone who became eligible for SSDI in 2013 is the sum (total) of the following: 1  90% of the first $791 of average indexed monthly earnings. 2  32% of the average indexed monthly earnings over $791 through $4,768, and. 3  15% of the average indexed monthly earnings over $4,768.
1 This sort of building, however, would not come in at a simple cost of $85 per square foot due simply to the excessive amount of construction required on the interior. 2  A two-story unit of wooden construction with two condominiums would run roughly $484,500 in total costs.
3. The average per square foot cost for commercial office space construction can be anywhere between $100 per square foot to $200 per square foot or even more.