need help, thank you :)

Via Gelato is a popular neighborhood gelato shop. The company has provided the following cost formulas and actual results for the month of June: While gelato is sold by the cone or cup, the shop measures its activity in terms of the total number of liters of gelato sold. For example, wages should be $6,000 plus $1.80 per liter of gelato sold and the actual wages for June were $16,900. Via Gelato expected to sell 6,000 liters in June, but actually sold 6,200 liters. Required: Calculate Via Gelato revenue and spending variances for June. (Indicate the effect of each variance by selecting " F " for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.)