update to be more accurate (#9084)

jekyll/_includes/snippets/faq/billing-faq-snip.adoc

@@ -28,7 +28,7 @@ compute credits.
 [#run-out-of-credits]
 === What happens when I run out of credits?
 
-On the *Performance Plan*, when you reach 0 credits, you will be refilled 25% of your credit subscription, with a minimum refill of 25,000 credits. For example, if your monthly package size is 100,000 credits, you will automatically be refilled 25,000 credits (at $.0006 each, not including applicable taxes) when you reach 2000 remaining credits.
+On the *Performance Plan*, when you reach 0 credits, you will be refilled approximately 25% of your credit subscription, with a minimum refill of 25,000 credits. For example, if your monthly package size is 100,000 credits, you will automatically be refilled 25,000 credits (at $.0006 each, not including applicable taxes) when you reach 2000 remaining credits.
 
 If you notice that your account is receiving repeated refills, review your credit usage by logging in to the CircleCI web app, then select menu:Plan[Plan Usage]. In most cases, increasing your credit package should minimize repeat refills. You can manage your plan by clicking `Plan Overview`.
 
@@ -47,7 +47,7 @@ You can pay from inside the CircleCI app for monthly pricing.
 [#when-do-i-pay]
 === When do I pay?
 
-On the *Performance Plan*, at the beginning of your billing cycle, you will be charged for premium support tiers and your monthly credit allocation. Any subsequent credit refills _during_ the month (such as the auto-refilling at 25% when there are 0 credits remaining) will be paid _at the time of the refill_.
+On the *Performance Plan*, at the beginning of your billing cycle, you will be charged for premium support tiers and your monthly credit allocation. Any subsequent credit refills _during_ the month (such as the auto-refilling at approximately 25% when there are 0 credits remaining) will be paid _at the time of the refill_.
 
 [#what-is-prepaid-billing]
 === What is prepaid billing?