I am pulling 10 integers from a MySQL DB:

I want to be able to determine the largest value then round up to the nearest hundredth. With this I want to then be able to create a list of 10 numbers that are evenly separated down to zero.

In Example : 
{ 232, 10, 0, 55, 130, 423, 102, 22, 98, 3 }

Take : 423 => Round up to 500

Then with the number 500 come back with equally separated numbers such as :

500 , 450 , 400, 350, 300, 250, 200, 150, 100, 50, 0

Thank you for the help in advance!

Chris