Sheffield Corp.is constructing a building. Construction began on January 1 and was completed on December 31. Expenditures were $6456000on March 1, $5280000on June 1, and $7950000on December 31.Sheffield Corp.borrowed $3160000on January 1 on a 5-year,13% note to help finance construction of the building. In addition, the company had outstanding all year a11%, 3-year, $6450000note payable and an12%, 4-year, $12550000note payable.

What are the weighted-average accumulated expenditures?