The phrase "demand decreased" is correct and usable in written English.
You can use it when discussing changes in market conditions, sales, or consumer behavior.
Example: "Due to the economic downturn, demand decreased significantly for luxury goods."
Alternatives: "demand fell" or "demand declined."
Shipments, a good barometer of current demand, decreased 1.6percentt in February after a 2.7percentt gain in January.
Aside from the swans, bird prices were more moderate this year as demand decreased.
The Mortgage Bankers Association said its seasonally adjusted index of mortgage application activity, which includes both refinancing and home purchase demand, decreased 1.3 percent last week.
Unfilled factory orders for durable goods, a gauge of pent-up demand, decreased seven-tenths of 1percentt during June after falling six-tenths of 1percentt in May.
As demand decreased in the summer and fall, however, China's steel mills began postponing iron-ore deliveries, and analysts predicted that the slowdown could reduce sales by 10% by year's end.
The grain yield accounted in energy per hectare increased three times in relation to the year of reference (1986), while the energy demand decreased by 32%, blue water demand increased 50%.
The need for feeder services decreases and the transshipment demand decreases".
When demand decreases, the corporate housing company can give up leases and remove furniture.
"A cheap euro, improving domestic demand, decreasing inventories, an increasing trend in new orders and upbeat producers have all failed to result in growth in industrial production in 2015," he said.
What is unquestionably true is that jobs do get created, that the rate of creation depends on and varies with causal factors - and that for many things bought and sold (which labor is), demand decreases as price increases.
Also, firm 1's demand increases with d while firm 2's demand decreases with d.
