How to Create custom block for displaying information in content section which act like shortcode

You can store values in a database and get that value from the database and pass the value to shortcode from the database.

Now you just need one admin page to update these 4 values.

to add menu page refer this
for example, after creating page you can save this 4 values in side option table using update_option() and using get_option() when needed.

update_option('anykey','3,100+'); 
$number = get_option('anykey');

[showsusp figure=$number usptitle="Satisfied Clients"]

I hope you get the idea.