a) What percentage improvement is needed in a supply chah strategy for proft to improve to $17,800 ? What is the cost of material with a $17,800 prof i ? A decrease of 5.3% in supply-chain costs is requind to yield a profit of 517,800 , for a new cont of wupply chain purchases of 1 decimal place and anter your rosponse for the new supply chain cost as a wholo number) (Enter your response for the percentage decrease to one D) What percentage improvement is needed in a sales strategy for profit to imorove to $17.800 ? What must sales be for profit to improve to $17,800? An increase of 6 in sales is required to yeld a profit of $17,800, for a new new level of saies of $ (Enter your response for the percentage increase to one decimal place and enter your respanse for the new saies as a wholo number.)