Update understanding-pricing.md

Author: JackStromberg

articles/application-gateway/for-containers/understanding-pricing.md

@@ -199,7 +199,7 @@ Pricing calculation:
 *	1 Association x $0.12 x 730 hours = $87.60
 *	8 Capacity Units x $0.008 x 730 hours = $46.72
 *	WAF enablement x $0.068 x 730 hours = $49.64
-*	10 one million requests (10) x $0.75 x 2 WAF rulesets = $15
+*	10 one million requests (10) x $0.75 x 2 WAF rulesets (DRS 2.1 and Bot Manager) = $15
 *	Total = $218.67
 
 ### Example 7 - Web Application Firewall - Multiple Policies
@@ -221,11 +221,9 @@ Pricing calculation:
 *	1 Association x $0.12 x 730 hours = $87.60
 *	8 Capacity Units x $0.008 x 730 hours = $46.72
 *	WAF enablement x $0.068 x 730 hours = $49.64
-*	10 million requests (10) x $0.75 x 4 WAF rulesets (3 DRS rulesets + 1 Bot Manager ruleset) = $30
+*	10 million requests (10) x $0.75 x 2 WAF rulesets (DRS 2.1 and Bot Manager) = $15
 *	Total = $218.67
 
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 ## Next steps
 
 See the following articles to learn more about how pricing works in Application Gateway for Containers by visiting the Application Gateway pricing pages: