Confused reading this HR monitor...please help

Trinichica

Do you use a heart rate monitor and if so, how do you read it?
I have a Lloyd's pharmacy heart rate monitor. After my workout I am faced with two numbers for the amount of calories burned and I have no idea what it means and on top of that it say kcal....

So for example at the end of a workout it has a main number say 350, then a smaller number to the right of it that reads kcal 47.......help I am so confused.