Emma Inc.'s capital structure consists of 30 percent debt and 70 pecent common equity. According to its investment banker, Emma Inc. can issue up to $240,000 new debt at 3.8 percent cost; for any amount of new debt greater than $240,000, the cost is 5.5 percent. Emma Inc. expects to generate $560,000 in retained earnings this year. Compute the WAC breakpoints associated with raising funds.