Refer to figure.
The total aircraft mass at landing (landing mass) is the take-off mass reduced by all fuel used during the particular flight. In other words, LM is the zero fuel mass (ZFM) plus all fuel that should still be onboard.

In this case, the fuel at landing will equal to the fuel loading minus fuel allowance for start, taxi and run up, minus estimated fuel burn-off.

Fuel loading (lb) = 85 US Gal x 6 lb/US gal = 510 lb

Fuel allowance for start, taxi and run up (lb) = 4 US gal x 6 lb/US gal = 24 lb

Estimated fuel burn-off (lb) = 60 US gal x 6 lb/US gal = 360 lb

Fuel at landing (lb) = 510 lb - 24 lb - 360 lb = 126 lb

• Landing Mass (LM) = BEM + Pilot and front passenger + Passengers + Baggage Zone 1 + Baggage Zone 4 + Fuel at landing
• Landing Mass (LM) = 3210 lb + 380 lb + 330 lb + 100 lb + 100 lb + 126 lb = 4246 lb