Help with the 2020 forecast part! Thanks

Exclude (000,000) in millions Revenue Cost of Goods Sold Gross Profit Selling, Admin, Other Net Operating Income Three Most Recent Years 2019 2018 $20,156,447 $15,794,214 $12,440.213 $9,967,538 $7,716,234 $5,826,676 $3,566,831 $2,999,763 $4,149,403 $2,826,913 SOURCE USED: SEC.gov 2017 $11,693,713 $7,659,666 $2,141,590 $1,892,457 ==Be sure to confirm OPERATING INCOME Total Assets at Year-End Shareholder Equity Y/E $33,975,712 $7,582,157 $25,974,400 $5,238,765 $19,012,742 $3,581,956 1. Sales Growth 27.6% 35.0% 3.2% (CY - PY)/PY 2. Profitability Gross Profit Margin Operating Margin Return on Assets Return on Equity 34.5% 7.2% 38.3% 12.9% % 34.0% 36.9% 10.2% % 30.0% GP/Rev NOI / Rev NOI / Assets OK to use Operating Income NOI / Equity OK to use Operating Income % A. My forecast for 2020 year's sales growth is because (list two reasons) 1. 2. % B. My forecast for 2020 year's oper'g. margin is because (list two reasons) 1. 2