diff --git a/client3.py b/client3.py
index 3fc09b75f16..0e9e779f35d 100644
--- a/client3.py
+++ b/client3.py
@@ -35,14 +35,14 @@ def getDataPoint(quote):
     stock = quote['stock']
     bid_price = float(quote['top_bid']['price'])
     ask_price = float(quote['top_ask']['price'])
-    price = bid_price
+    price = (bid_price + ask_price)/2
     return stock, bid_price, ask_price, price
 
 
 def getRatio(price_a, price_b):
-    """ Get ratio of price_a and price_b """
-    """ ------------- Update this function ------------- """
-    return 1
+    if price_b==0:
+        return
+    return price_a/price_b
 
 
 # Main
@@ -54,6 +54,7 @@ def getRatio(price_a, price_b):
         """ ----------- Update to get the ratio --------------- """
         for quote in quotes:
             stock, bid_price, ask_price, price = getDataPoint(quote)
+            prices[stock]=price
             print("Quoted %s at (bid:%s, ask:%s, price:%s)" % (stock, bid_price, ask_price, price))
 
-        print("Ratio %s" % getRatio(price, price))
+        print("Ratio %s" % getRatio(prices["ABC"], prices["DEF"]))