The breakeven, in one line
Under royalty share, the narrator earns half the royalty on every sale. The flat fee is a one-off cost. They cost you the same after:
breakeven sales = (finished hours × rate per finished hour) ÷ (price × royalty rate × 50%)
Worked example
A 10-hour book at 250 per finished hour costs 2,500 up front. At $19.95 and 50% royalty, the narrator’s half of one sale is $4.99. The fee breaks even after 2,500 ÷ 4.99 = 502 sales. Sell 20 a month and that’s about 26 months; over seven years you’d sell 1,680.
Default rates from ACX, last checked 22 October 2026. Work out the fee itself with the narrator cost calculator, and compare exclusive with wide in the royalty calculator. Not affiliated with ACX or Audible.