Company XYZ made total sales revenue of $500,000. The variable manufacturing costs were $135,000 while the fixed manufacturing costs were $20,000. The variable selling and administrative expenses were $1,000 while the fixed selling and administrative expenses were $10,000. How much was the total contribution margin ($)? None of the given answers b. 345.000 mc 439,000 O d. 314,000 O e 365,000