Urgent pls

first thing is that you have to see the business apart from the individuals,

if he is sending goods with his own money then credit m A/c and debit purchases if their normal practice is that to remmit the amount to the person who contributes the goods the see the balance in the M a/c any the excess amount brought is to be remmited including expences if any

in your query

M will get his contri bution of 6000+100(towards expenses)+600(towards  his profit share)

N  will get an amount of 200(towards expences)+600(profit share)