Complex sentence: This consists of a newly-built four-level (350,000 square foot) J.C. Penney, replacing the three-level store that had opened at the mall in 1968.
Split into simpler sentences: This consists of a newly-built, 4-level (350,000 square foot) J.C. Penney. It replaces the 3-level store that had opened at the mall in 1968.