(4) Compute the Total labor variance.

This is a practice problem and I can't figure out how to get the Standard Hours. The study guide says it is 705.

Compute materials and labor variances Nona Inc., which produces a single product, has prepared the following standard cost sheet for one unit of the product. Direct materials ( 8 pounds at $2.50 per pound) $20.00 Direct labor ( 3 hours at $12.00 per hour) L $36.00 During the month of April, the company manufactures 235 units and incurs the following actual costs. Direct materials purchased and used ( 1,900 pounds) $5,035.00 Direct labor ( 700 hours) $8,260.00