Standard_DT4s_v7 is an Azure VM size with 4 vCPUs. In East US it costs $0.251 per hour on demand ($183.23 per month) for Linux. Spot capacity is about $0.0502 per hour. It is sold in 7 regions; the cheapest is Central US at $0.241 per hour.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.