Standard_DT4als_v7 is an Azure VM size with 4 vCPUs. In East US it costs $0.153 per hour on demand ($111.69 per month) for Linux. Spot capacity is about $0.0306 per hour. It is sold in 7 regions; the cheapest is Central US at $0.153 per hour.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.