Added the add_interest method for the MMA.

aniagonzalez · Mar 4, 2016 · c2f8509 · c2f8509
1 parent aed2b06
commit c2f8509
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/accounts.rb b/accounts.rb
@@ -226,6 +226,12 @@ def reset_transactions
       @transaction_count = 0
     end
 
+    def add_interest(rate)
+      interest = @balance * rate/100
+      @balance = @balance + interest
+      return interest
+    end
+
 
   end