Once upon a time, when most of the customers were going to leave with very little consumption.

"with very little consumption" could also be replaced with "Without buying anything" to sound more natural. However, your sentence isn't wrong!

All of my colleagues and even my boss had given up this travel group, t. They were seated on the chairs to have a rest.

Try to use "," when the sentence goes on and relates.

I walked slowly and ushered a smiling guest from a corner to the cashier's desk, this gentleman paid USus $700 for it.

You can also say "700 USD", which stands for "United States Dollars".

During the time when I've been working there, I created a sale record for a single person at about HK$ $25,000.

The second one I did well was - h'How to sSell a Souvenir Coin Album'.

Chinese currency c. Coin albums were left by the former owner of the exhibition center (The Center once bankrupted before, then my current boss later bought it and hired us to go on), and they piled it on the ground with thick dust in a small warehouse.

I told my guests, "The coin album is the first buy here because the handover of Hong Kong in 1997 is approaching.(on it's way?)

This kind of specific coin album had a special meaning for it, since it included some Hong Kong coins, and the quantity of the coin album is not large, even some coin lovers in the world are now trying to collect it because they believe the price will soar a year later.

In order to express our sincere(thank you's? Apologies?) to all of you, our exhibition center allows any of you to buy no more than one coin album, HK$100 for each."

My Life in SZ (16) - How toWe Worked

Once upon a time, when most of the customers were going to leave with very little consumption.

AOnce upon a time, when most of the customers were going to leave hardly buying anything, all of my colleagues and even my boss had given up on this travel group, t. They were seated on the chairs to have a rest.

I walked slowly and ushered a smiling guest from a corner to thea cashier's desk, for which this gentleman paid US$700 for it.

During the time when I've beenWhile I was working there, I createdmade a sales record for a single person at about HK$ 25,000.

わー！すごい！

(tThe unit currency in sales volume was generally in Hong Kong and US Dollars.)

The secAnother onde one I did well was - how to sell af my achievements was selling the Souvenir Coin Album.

We had hundreds of a specific

We had hundreds of a specific Chinese currency coin albums which were left by the former owner of the exhibition center. (The Center oncewent bankrupt onced before, then my current boss later bought it and hired us to go on), and they.) They were piled up on the ground covered with thick dust in a small warehouse.

I told my guests, "The coin album is the first thing to buy here because the handover of Hong Kong in 1997 is approaching.

This kind of specific coin album had as special meaning for it since it includeds some Hong Kong coins, and the quantity of the coin albums is not large,limited. There are even some coin lovers in the world who are now trying to collect itone because they believe the price will soar in a year later.

In order to express our sincere gratitude to all of you, our exhibition center allows for any of you to buy no more than one coin album, at HK$100 for each."

In fact, I didn't know how much it really cost,. I guessed it was worth no more than HK$20.

We sold out of the coin album in two months, m. My boss smiled and was excited to buy more coin albums from the wholesalers.

Once upon a time, when most of the customers were going to leave with very little consumptionout buying much.

All of my colleagues and even my boss had given up with this travel group, so they were seated on the chairs to have a rest.

I walked slowly and ushered a smiling guest from a corner to the cashier's desk, this gentleman paid US$700 for it.

It's unclear what "it" is. Is it the desk? Or something unnamed?

During the time when I've been working there, I created a sales record for a single person at about HK$ 25,000.

Was it a sales record for a single customer or employee?

(the unit currency in sales volume was generally in Hong Kong and US Dollars)

Chinese currency coin albums which were left by the former owner of the exhibition center (The Center once bankrupted before, then my current boss later bought it and hired us to go on), and they piled on the ground with thick dust in a small warehouse.

I told my guests, "The coin album is the fira must buy here because the handover of Hong Kong in 1997 is approaching.

Sort of guessing a bit on intent

This kind of specific coin album had a special meaning forto it since it included some Hong Kong coins, and the quantitre are not many of these coin album is not larges, even some coin lovers inaround the world are now trying to collect it because they believe the price will soar in a year later.

In order to express our sincergratitude to all of you, our exhibition center allows any of you to buy no more than one coin album, HK$100 for each."