Via Gelato, a popular neighborhood gelato shop, 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 exam wages should be $6,100 plus $1.90 per liter of gelato sold and the actual wages for June were $17,900. Via Gelato expected to sel 6,100 ilters in June but actually sold 6,300 liters. Required: Calculate Via Gelato's revenue and spending variances for June. Note: 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