457170 Increment a value on load

Required *** Strong MySQL coding skills *** Strong PHP skills ... Basically column A is incremented per display currently. I need for the column B to increment also a percent of the value that goes into column A. This will also only increment as long as a certain flag is set. This flag will turn off after a certain number is met pulling the value from column A. ... The flag should also update as on for new accounts created. There is also an if statement to be created to exclude a certain banner. But the flag is created making this easier.