basic.-= Assignment Operator/BASIC Program

basic.-=

Command basic.-= Assignment Operator/BASIC Program
Applicable release versions: AP 5.2.5
Category BASIC Program (486)
Description decrements a variable by a numeric expression.
Syntax variable -= num.expression
Options
Example
x -= 1
Subtracts one from the variable, "x" and assigns the result to 
"x".

total -= tax
This is equivalent to the statement:
total = total - tax
Purpose
Related basic.+
basic.-
basic.precision
basic.sum
basic./=
basic.operators
basic.arithmetic.expressions
basic.:=
basic.num.expression
basic.precedence
basic.=
basic.assignment
arithmetic.operators
basic.*=
basic.+=
basic.*.multiply