A very promising week of previews for musical “Hamilton” contributed to a robust Broadway box office frame that saw just about every show on the board post increases.

“Hamilton,” which was a big, buzzy celeb-magnet hit Off Broadway, grossed $1,288,436 for its seven preview performances at the Richard Rodgers Theater, according to July 13-19 estimates from The Broadway League. Its total attendance of 9,273 exceeded the week’s potential of 9,247, and its average paid admission of $138.94 made it the week’s priciest ticket on the Rialto.

The musical (by Lin-Manuel Miranda, who also stars) figured to be a boffo performer last week, as very strong advance sales had indicated huge out-of-the-gate interest. It opens on Aug. 6.

Review: Hamilton

In all, 13 Broadway shows earned $1 million or more, led by “The Lion King” ($2,620,016), “Wicked” ($2,167,815), “Aladdin” ($1,833,662), “The Book of  Mormon” ($1,654,152) and “An American in Paris” ($1,439,178). “Lion King,” “Wicked” and “Mormon” took advantage of tourist season to play nine performances instead of the usual eight.

Overall Broadway attendance spiked by nearly 24,000 week-to-week to 270,484, or 90.9% of total capacity, and was up about $9,000 from the same frame a year ago (261,209). The average price paid per ticket rose nearly $3 to $110.20. Cumulative sales climbed about $3.5 million from the previous week to $29,808,363 for 29 shows

Fun Home,” still basking in its Tony win for best musical last month, had another strong week, playing to full houses at Circle in the Square and grossing a best-yet $817,665. “Penn and Teller On Broadway,” which topped $1 million in its first week  of seven previews (plus one opening night), gained about $150,000 to $1,225,400.

The week’s big gainers among musicals included “The Phantom of the Opera” (up $150,052 to %1,064,460), “Hedwig and the Angry Inch” (up $147,149 to $681,087), “Les Miserables” (up $112,906 to $801,902), “Beautiful” (up $05,583 to $1,023, 705) and “On the Twentieth Century” (up $102,336 to $571,895). For “Twentieth Century,” it marked a strong finish for a production that closed on Sunday.

“An Act of God,” the solo show starring Jim Parsons from TV’s “The Big Bang Theory,” was up $70,000 and just missed becoming a member of the $1 million club($990,023). It was the week’s No. 1 play, holding off “The Curious Incident of the Dog in the Night-Time,” which rose about $30,000 to $920,865 and played to 97.3% capacity at the Ethel Barrymore.