MSUB calculates the difference of monthly values from a specified monthly variable.

SYNTAX:

MSUB(Cx)
where :
Cx is a conditional variable x

NOTES:

This function takes the current month's value and subtracts the previous months value from it to show the monthly difference/change.

EXAMPLES:

V119 = MSUB(C109)

Variable 119 will contain the monthly difference of variable 109 (a monthly average variable):