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|  | //destination// | += | //source// |
|  | //destination// | -= | //source// |
|  | //destination// | *= | //source// |
|  | //destination// | /= | //source// |
|  | //destination// | ^= | //source// |
|  | //destination// | %= | //source// |

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| //destination// | Must be the label of a variable. This may not be a runtime property. |
| //source// | A constant, variable, procedure, or expression. |

Operating assignment statements perform their operation on the //destination //and //source, //then assign the result to the //destination//. Operating assignment statements are more efficient than their functionally equivalent operations.

**Example:**

** **__** Operating Assignment**__**       **__**Functional Equivalent**__

**  A += 1                     A = A + 1**

**  A -= B                     A = A - B**

**  A *= -5                    A = A * -5**

**  A /= 100                   A = A / 100**

**  A ^= I + 1                 A = A ^ (I + 1)**

**  A %= 7                     A = A % 7**

**See Also:**

[[data type conversion rules.htm|Data Conversion Rules]]

[[property expressions.htm|Property Expressions]]