At one point, some Treasury bonds were callable. Consider the prices on the following three Treasury issues as of May $15,2022$:

$7\mathrm{.}10$ May $26112\mathrm{.}34375112\mathrm{.}40625\mathrm{.}406255\mathrm{.}40$

$8\mathrm{.}85$ May $26109\mathrm{.}46875109\mathrm{.}53125\mathrm{.}156255\mathrm{.}36$

$12\mathrm{.}60$ May $26146\mathrm{.}62500146\mathrm{.}81250\mathrm{.}468755\mathrm{.}44$

The bond in the middle is callable in February $2023.$ What is the implied value of the call feature? Assume a par value of $$1,000.($Hint: Is there a way to combine the two noncallable issues to create an issue that has the same coupon as the callable bond?$)$