update,

PRICE.md

@@ -0,0 +1,13 @@
+# PRICE
+
+i.e.
+price per credit: HKD5700 
+
+if a course takes 3 credit => 5700 * 3 = 17100 
+
+if a course work equals 50% of total mark
+then i mark 10% of 17100 ~= 1700
+
+on customer point of view, 
+they are saving 17100 and time by 1700
+