What affects repair cost
A steep or difficult-to-reach area takes different preparation from an accessible lower slope. Several existing layers, a complex wall intersection or damaged wood can add removal, material and labor. Color matching may also be limited by the age and availability of the existing shingles.
That is why a patch size alone is not a dependable price. The useful comparison is the work included: which failed parts are being replaced, what they connect to and how concealed damage will be handled.

