hi all. in terms of promotion (e.g. mx12 to mx11), what kind of increment would you expect to receive? just merit increment? or is there a "promotion increment" too?

also, referring to the example below, would the increment from y5 to y6 > y6 to y7 (given that there is a rise in rank title in the former)

y5: mx12
y6: mx11
y7: mx 11

thks