Part 1: Cash Flow Estimation Estimate the free cash flow of 2019 under the following assumptions. Assumptions: 1. Year 2019 sales projection: $31,556,000,000 2. All the other income statement accounts are assumed to hold a constant percentage as sales. The percentage is the average percentage of fiscal years 2016,2017 and 2018 . 3. Investment in net operating working capital and capital expenditure are assumed to stay perpetually as the average of year 2017 and 2018 . Requirements: 1. Build common size income statements for year 2016,2017 and 2018. 2. Prepare a pro forma income statement for year 2019. 3. Prepare a legend table to calculate the CAPEX and change in NOWC for year 2017 and 2018, and use Assumption 3 to calculate the CAPEX and change in NOWC for year 2019