I checked DASH mining on Bitdeer, it does not seem to be profitable at all. according to my calculations ROI is Infinity.
Intestingly, 120 day plans are sold out. Do they know more ?
They keep adjusting the price on the plans they offer. That isn't surprising it is no longer profitible. They probably just haven't changed prices back. The dash to btc market price is probably quite volatile as well as the dash to usd since bitcoin shot up.