Your firm has just assigned you a new client. Wanting to do the best job you can, you review the current investment holdings of the client. Included are the following mutual fund accounts: $50,000 in Class B shares of the STU Growth Fund $25,000 in Class A shares of the STU International fund $15,000 in Class A shares of the TUV Utility Fund STU and TUV offer rights of accumulation and breakpoints at $25,000, $50,000, and $100,000. If the client wishes to invest $20,000 into the Class A shares of the TUV Technology Fund, the sales charge would be based on