Aug 13 (Reuters) - Mattamy Group Corp MGCI.UL :
* QTRLY REVENUE DECREASED 32.6% TO $1.22BLN FROM $1.81BLN IN PRIOR YEAR QUARTER
* Q4 NET SALES ORDERS DECREASED 30.0% TO 1,402 HOMES
* SALES ORDER BACKLOG INCREASED 1.0% TO 6,361 UNITS AT QUARTER END