Please help.

Assume that Almond Milk Company has a $1,000 face value bond with a stated coupon rate of 6.85 percent that is convertible into its common stock at $35.73. The bond is selling at $1,054.12 in the market. The common stock is selling for $33.78 and pays a dividend of 0.54 per share. Calculate the conversion premium:

My teacher marked 11.50% as the right answer, but I don't know how she got it