Hau Lee Furniture, Inc., spends 50% of its sales dollars in the supply chain and finds its current profit of $21,000 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 line to $26,000 so he can obtain the bank's approval for the loan. What percentage improvement is needed in the supply chain strategy for profit to improve to $26000