How much does it cost to fix a WordPress bug?

One well-defined WordPress bug is a flat $99 Quick Fix (~4h @ $25/hr), turned around in 24-48 hours. A batch of bugs or one deep root-cause, a fatal after a PHP bump, a broken update, a site that keeps falling over, is the $499 Bug-Fix Sprint (~20h @ $25/hr). Sites that cannot go down get a custom Emergency / Retainer plan with an under-4h SLA. No per-hour surprises: every bug is quoted upfront before work starts.