The blog cites an interesting tool called COST: The NetBlocks Cost of Shutdown Tool https://netblocks.org/projects/cost

NetBlocks Cost of Shutdown Tool™ (COST) is a data-driven online service that enables anyone – including journalists, researchers, advocates, policy makers, businesses, and others – to quickly and easily produce rough estimates of the economic cost of Internet disruptions.

https://progres.online/reports/internet-freedom/what-does-in...

"It indicates that a total internet shutdown in Turkmenistan for one day could result in a loss of 17.4 million USD, which translates to 6.4 billion USD per year, equivalent to around 7.8% of the country’s GDP in 2023."