After the United Nations World Food Program responded to Musk's request for an explanation of how the money will be spent, executive director David Beasley challenged the Tesla chief executive on Monday to donate a total of $6.6 billion to alleviate a global hunger crisis.

The breakdown was revealed alongside a "one-time call" for donations from Musk and other billionaires from the World Food Program.

"This hunger crisis is both urgent and unprecedented, and it can be avoided. You asked for a clear plan and open books, @elonmusk. It's finally here! We are eager to speak with you - and anyone else - who is committed to saving lives. To avoid starvation in 2022, the request is $6.6 billion," Beasley commented on Twitter.

In recent days, Musk and Beasley have exchanged blows on social media about the World Food Program's appeal for funds. The tussle began in October, when Beasley initially urged Musk and other billionaires to donate a modest amount of their wealth to help reduce global poverty.

Musk reacted angrily to the public plea, saying he would pay the $6 billion requested by the WFP if the organization could outline how the money would be spent to properly solve the situation.

"If WFP can explain exactly how $6 billion would eliminate world hunger on this Twitter thread, I will sell Tesla stock right now and do it," Musk said. However, Musk added that it must be open source accounting so that the public can see exactly how the funds are used."

"A perfect combination of conflict, climatic issues, the effects of the COVID-19 outbreak, and escalating expenses for reaching those in need is producing a seismic hunger catastrophe," the WFP stated in its latest appeal to billionaires.

The WFP claimed that $3.5 billion of the $6.6 billion would be used to cover the cost of food, as well as shipping and transit to needy areas. An additional $2 billion would be spent on cash and food vouchers in "marketable places," WFP said.

The WFP has estimated that $700 million is required to cover "country-specific expenditures to design, scale up, and oversee the implementation of efficient and successful programs" in 43 at-risk countries, including satellite offices, security, and food distribution tracking.

Another $400 million would be allocated for "global and regional operations management, administration, and accountability," which would include supply chain management and independent program audits, the WFP said.