Please help solve this question

The following materials standards have been established for a particular product: Standard quantity per unit of output 3.0 grams Standard price $13.00 per grams The following data pertain to operations concerning the product for the last month Actual materials purchased 1,800 grams Actual cost of materials purchased $ 20,970 Actual materials used in production 1,100 grams Actual output 340 units The direct materials purchases variance is computed when the materials are purchased. Required: a. What is the materials price variance for the month? (Input the amount as a positive. value. Leave no cells blank - be certain to enter "0" wherever required. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance.) Materials price variance