This should help
Assume the flight is routing JFK-STN-ORY-BRU and this is the load sheet from STN.
“A” is the number of passengers in transit from JFK to ORY
“B” is the number of passengers joining in STN destination ORY
“C” is the deadload in transit from JFK to ORY
“D” is the weight of the baggage joining in STN destination ORY. NB it is important to make sure the same unit of measurement throughout the load sheet,
“E” is the total “M A/F C” in transit
“F” is the total “M A/F C” joining
“G” is the total revenue passengers joining
“H” is the total none revenue passengers joining
The total of E and F should be the same total as G and H
I hope that helps