You asked for a specific number. Which, of course, would be impossible to quantify.
There is no amount of works you can do that would prove to yourself that you have true faith.
But there is a work that God Does that proves that you are Saved and have True Faith.
If God doesn't show you that you are saved then everything that you do is pretty much pointless. You would be working to try and earn. That is not the way God Works.
In order to know you are saved you have to know that you can't earn Salvation by your work. And then give up and ask Christ for His Help. And believe that He Is and is a Rewarder to those who call on Him.
It probably sounds like I'm talking in circles now....lol
Sorry to intrude but as you all are taking the entire Matthew, Mark Luke and John apart for your point, you really are missing the point.
There is a parable that explains heaven. Heaven is Like a man finding a treasure in a field, covers it over, goes home and sells everything to buy this field.
Taking a chance and getting what you know the reward of. Goodness me. It's Logic. Seeing am opportunity and grabbing it has fed so many far better food than those that do not seize the moment.
Jesus teaches, if you have a talent and develop it, you'll have 2. If you have 2, you'll have 4.,etc exponential growth in abilities. So If you see you are able to the littlest thing you can grow that achievement to unknown heights.
But if you bury your head under the duvet in today's terms, you'll endlessly stay on state assistance and have basic foods.
So it is measurable. The more you try in Faith you'll achieve. Without faith you will not try. Doubt disables you from trying.
The bible If You Not Yet Aware is sold in bookshops under the shelf header: Personal Development.
Professional personal developers make a load of money from saying exactly this in front of halls filled with gullible people when this info is free in the Gospel.
Whenever you try and succeed thinking that Jesus stand by you or that God is your motivation and Is Righteous in the Law of your country, you can tick your box.
I'm not a builder but I have renovated houses. I'm not a trained plumber but I plumb. Electrician, solar energy, gas, building plastics, carpenter, roofer, computer programmer, robotics All because I'm not afraid to try.
Yes Fear and Fear alone stops people trying. Going with the flow, like everyone else. Jesus spoke out against the very temple he studied in.
He said we not pray repetitively, Yet everyone is still stuck repeating the same stuff. There are people climbing the most difficult mountains by their fingertips. Fingertips for goodness sake.
Some can't hold a cup anymore.