A maximum amount of US$1,000 per purchase is qualified to receive SG.
For example, with a 100% crypto back store, if you make a $1,500 purchase, you will earn $1,000 worth of SG. With a 50% crypto back store, if you if you make a $1,500 purchase, you will earn $500 worth of SG.
Please note that the crypto back rate differs depending on the store and campaign so please make sure to check the store conditions carefully before making purchases.