I have the top two correct I need part b please!

Hau Lee Furniture, Inc., spends 45% of its sales doilars in the supply chain and finds its current profit of $28,000 inadequate. The bank is insisting on an improved profit picture prior to approval of a loan for some new equipment Hau would like to improve the profit in to $33,000 so he can obtain the bank's approval for the loan Cost of material Fixed cost Current Situation Sales $140,000 $63,000 (45%) Production costs $28,000 (20%) $21,000 (15%) Profit $28,000 (20%) a) What percentage improvement is needed in the supply chain strategy for profit to improve to $33,000? What is the cost of material with a $33,000 profit? A decrease of 7.9 % in material (supply-chain) costs is required to yield a profit of $33,000, for a new material cost of $ 58000 (Enter your response for the percentage decrease to one decimal place and enter your response for the new material cost as a whole number b) What percentage improvement is needed in the sales strategy for profit to improve to $33,000? What must sales be for profit to improve to $33,000? An increase of % in sales is required to yield a profit of $33,000, for a new new level of sales of 5 ] (Enter your response for the percentage increase to one decimal place and enter your response for the new sales as a whole number)