Machine Builders Inc. adopted a standard cost system several years ago that it uses in conjunction with its process cost system. The per- unit standard costs for direct materials and direct labor for its single product are as follows: Materials: (8 kilograms * $10 per kilogram) Labor: 17 hours * $15 per hour) $ 80 $ 105 All materials are issued at the beginning of processing. The operating data shown below were taken from the records for July In-process beginning inventory In-process ending inventory-90complete as to labor Units completed during the month Budgeted output Purchases of materials, in kilograma (10) Total actual labor costs incurred Direct labor hours worked (1) Materials purchase-price variance Increase in materials inventory in July Beginning Inventory of materials none 900 units 7,560 unita 8,400 units 29,000 $526,000 31,000 hours $ 2,600 unfavorable 1,400 kilograms 0 kg. The direct labor efficiency variance for July, to the nearest dollar, was