CoinSoft was a company that developed software to manage portfolios of cryptocurrencies. In $2021,$ the company's revenue was $$14$ million. In $2022,$ customers paid for $$4$ million in upgrades. In the same year, there were $$0\mathrm{.}5$ million in downgrades and $$0\mathrm{.}8$ million in reduced revenue from customers who went out of business themselves or switched to a competitor.

Calculate the net dollar retention in percentage form? The correct answer is $119\mathrm{.}3,$ please explain fully