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23. Tysor Framing's cost formula for its supplies cost is $1,240 per month plus $13 per frame. For the month of July, the company planned for activity of 622 frames, but the actual level of activity was 614 frames. The actual supplies cost for the month was $8,450. The spending variance for supplies cost in July would be closest to: $772 U O $876 U O $876 F $772 F 2021 McGraw-Hill Educat