How far below the main ridge does a cross wing's ridge sit?

The wall-framing takeoff now says it. A 16 ft wide wing at 4:12 rises 32 in over its plates (half the width, 96 in, times 4/12). A 28 ft main roof at the same pitch rises 56 in, so the wing ridge sits 24 in lower. The roof report prints both numbers for each wing. The check is hand arithmetic, not a real plan.