KBB Motors has bonds outstanding which will mature in $12$ years. The bonds pay a $12$ percent semiannual coupon and have a face value of $$1,000($i$.$e$.,$ the bonds pay a $$60$ coupon every six months$).$ The bonds currently have a yield to maturity of $10$ percent. The bonds are callable in $7$ years and have a call price of $$1,050.$ What are the bonds' yield to call?

Hint: Calculate the price of the bond and then use it to calculate YTC