When you pick a risk percentage, you're not actually picking a number of customers' orders that'll be held for review. You're picking the level of risk you're willing to take for all your orders.
On ATShop, roughly 83% of all orders score less than 1% risk.
7% score between 1% and 2%
4% score between 2% and 5%
2% score between 5% and 10%
2% score between 10% and 50%
2% score between 50% and 100%
Keeping your risk percentage at or less than 10% is encouraged as you'll essentially (on average and depending on your business model) allow up to 96% of your orders to process automatically whereas the remaining 4% of likely fraudulent orders will be flagged for review, where you'll have the chance to determine whether or not to accept the order.
The system adapts!
We track the orders you discard/approve to improve future risk scores for your shop. When you adjust your risk score you might see an increase in flagged orders; this should only be temporary and should decrease over time as the system adapts.