OFFER IS JUST FEW DOLLARS LESS THAN THE ACCEPTABLE AMOUNT - If customer's initial offer is just few dollars away from the acceptable amount like the sample below, its ok to accept it. Just make sure that you check if there are other offer and accept the best one.
Buy It Now Price: $100
Acceptable Amount: $75
Customer's Offer: $73
OFFER IS BELOW ACCEPTABLE AMOUNT - Most of this can be a successful sale if we try to meet half way with customers.
Buy It Now Price: $100
Acceptable Amount: $75
Customer's Offer: $50
For sample offer above, you can make a counteroffer of $80 - 90.
If he counter with $75 or more, then accept it.
But if his counteroffer is still less than the acceptable amount, then give him $75 and advise that it will be our last price.
If he accepts that, that's good but if he counter offer again with less than the acceptable price, just decline.
OFFER IS TOO LOW
If customer's initial offer is way too far from the acceptable amount like the sample below.
Buy It Now Price: $100
Acceptable Amount: $75
Customer's Offer: $10
Make a counteroffer of not too far from the BUY IT NOW PRICE like $90.
If they counteroffer with an amount that is way too far from the acceptable amount still like $20, just decline his offer.