please explain step by step eith formulas please

predmont Company segments its business into two regions - North and South. The company prepared the contribution fommat segmented income statement as shown. Required: 1. Compute the companywide break-even point in doliar saies 2. Compute the breok-even point in dollar cales for the North region. 3. Compute the break-even point in doliar saies for the South region