% of $900,000 = $225,000

25%

Step-by-step explanation:

225,000/900,000 = 0.25

0.25*100 = 25%

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540