At the Beginning of Last Year, Tari Corporation Budgeted $300,000

At the beginning of last year, Tari Corporation budgeted $300,000 of fixed manufacturing overhead and chose a denominator level of activity of 600,000 machine-hours. At the end of the year, Tari's fixed manufacturing overhead budget variance was $9,000 favorable. Its fixed manufacturing overhead volume variance was $15,000 favorable. Actual direct labor-hours for the year were 625,000. What was Tari's total standard machine-hours allowed for last year's output?

A) 570,000
B) 630,000
C) 648,000
D) 656,250