NEW YORK — Black Thursday forced Broadway to put in a reduced sked of seven performances last week.

And although the power came back in time for Friday night’s perfs, the auds did not return full force in all cases. Most shows’ receipts fell more than 12.5%, the equivalent of one missed perf. Total tally for 23 shows came to $12,122,045, down $2,331,615 or 16.13% from the previous session of a full eight perfs.

Percentage-wise, little “Avenue Q” ($287,774) held up the best. Down only 7.1%, the smallest tuner on Broadway dropped a minor $22,276.

A few longer-running hits kept the dip in the 10%-13% range: “Hairspray” ($875,962), “The Lion King” ($982,170), “Movin’ Out” ($684,791), “Nine” ($684,905) and “Chicago” ($603,006).

There were a few stunning decreases. “42nd Street” ($605,328) fell $192,063; “The Producers” ($794,931) slid $181,497; and “Thoroughly Modern Millie” ($529,826) crumbled $183,854.

Most other shows experienced drops in the 15%-20% range: “Beauty and the Beast” ($591,750), “Big River” ($215,555), “Cabaret” ($297,022), “Enchanted April” ($124,107), “The Phantom of the Opera” ($589,500), “Rent” ($354,865), “Take Me Out” ($259,409) and “Urinetown” ($243,806).