Common assumption of many MADM is that all criteria are maximal. This assumption is not met in the washing machines model. Example: Washing machines - Decision Matrix. The criteria transformation involves only the minimal criteria. The part of criteria transformation is a change of their names.
 

2	electric power consumption kW per one washing cycle	Saved electric power  kW per one washing cycle
		( in comparison with the variant with highest electric power consumption)
3	water consumption litres per one washing cycle	Saved water litres per one washing cycle
		( in comparison with the variant with highest water consumption)
5	Cost price of washing machine CZK	Saved cost price CZK
		( in comparison with the most expensive variant)

Appropriate columns of the decision matrix are than:
 

f2	f3	f5
0,89	39	39990
1,05	54	22990
1,1	59	19990
1,15	59	17990
1,05	52	21590
1,3	72	14490
0,94	41	27990
1,3	72	14390
1,2	59	16390
1,25	74	15990

STEP 1: In each column find the column maximum (marked in the above table):

STEP 2:Transforrm each element in each column. The transformed decision matrix A thereinafter: