Is very subjective. . As you mentioned. Singaporean likes discount. By not stating any discount , there is a tendency you may lose out to your competitors. No doubt the end price may be about the same as others , but certain pool people once saw some discount from a company, they will assume that is is a better catch... That's Singaporean....

Petrol pricing is rubbish in SG. All follow the leader and offer useless membership points...500-600 dollar worth of points (as you earn thru purchases) can't even top up half a tank of petrol. In Taiwan, petrol station stay competitive by offering lower price for some trade-off. Eg...special discount on certain days of the week...self service vs service pump price...and ulu location offering lower pump price to let the consumer choose.

In SG, its here is the price...take it or leave it. Dun like my offers...go elsewhere.

very tiring job to find discount , why cant be more open

An item at 50% discount, vs buy-two-get-one-free: any difference? Yes, there is. The latter will clear your stocks.

Petrol at $2/L, vs $2.1/L with 5% discount: any difference? Yes, there is. With the latter, petrol stations reserves the right to remove the discount. The discount is like a privilege, not a right for the customer.

Correction: An item at 50% discount, vs buy-one-get-one-free: any difference? Yes, there is. The latter will clear your stocks.

Petrol at $2/L, vs $2.1/L with 5% discount: any difference? Yes, there is. With the latter, petrol stations reserves the right to remove the discount. The discount is like a privilege, not a right for the customer.