For the month of March, the company Alfa had a forecast of consuming 30 kg of raw material per unit of product X. The estimated cost is $ 50.00 per kg. At the end of the month, production was 40 units of product X. Actual consumption was 15% above the consumption that was initially forecast and the cost was 12% below forecast. Analyzing the variation between the estimated and the real, we have: a) The quantity variation was $ 225.00 per unit b) The cost variation was $ 225.00 per unit c) The mixed variation was $ 18.00 per unit d) The variation between the estimated and real cost was $ 18.00 favorable e) All incorrect