Need step by step calculation

Wesley Company manufactures and sells a single product. The company's income statement at sales level of 14,000 units for last quarter follows: Total Sales $ 840, Less: Variable expenses 504,000 Contribution margin 336,006 Less: Fixed expenses 210 ,000 Net operating income $ 126, 000 Required: 1. What is the monthly break-even point in units sold and in sales dollars? (Round your intermediate calculations and final answers to the nearest whole number.) Break-even Point Break-even point in units sold Break-even point in sales dollars