PB5-2 (Static) Estimating Cost Behavior Using Scattergraph and High-Low Methods [LO 5-2, 5-3] Sigrid's Custom Graphics specializes in creating and painting store window advertisement displays. The majority of its business comes from local retailers and fast-food restaurants. A portion of Sigrid's operating information for the past year follows: Required: 3. Using the high-low method, calculate Sigrid's total fixed operating costs and variable operating cost per window. 4. Using the high-low method results, calculate the expected operating cost for the business if it paints 75 windows. Complete this question by entering your answers in the tabs below. Using the high-low method, calculate Sigrid's total fixed operating costs and variable operating cost per window