I'm only making an educated guess, but according to the article below, One Detroit Centre was 38% occupied [[or 364,800 square feet of 960,000) as of May 2012. If Pricewaterhouse leases 70,000 square feet, the total occupied would be 434,800 sq. ft. Thus, the total occupancy would be 45.3%. That is assuming the building did not gain or lose tenants since that time.

http://www.crainsdetroit.com/article...detroit-center#