https://www.dw.com/en/why-does-indonesia-have-a-high-covid-19-mortality-rate/a-52947235

The highest COVID-19 mortality rate has been recorded in
Italy with 9%, while Iran's mortality rate is at 7.8%,
followed by Spain at 6%.

Last week, the Health Ministry admitted that the death
ratio in the country is much higher than the global
average mortality rate – 4%. Yurianto said the situation
could still be brought under control with the
implementation of safety measures.

https://edition.cnn.com/asia/live-news/coronavirus-outbreak-03-04-20-intl-hnk/h_7b1f3399da6e332e67770a7b40e2dbec

The World Health Organization (WHO) says the novel coronavirus is deadlier than seasonal flu strains. No one has built up immunity to the new virus, said WHO Director-General Tedros Adhanom Ghebreyesus.

He put the death rate for Covid-19 -- the disease caused
by the coronavirus -- at around 3.4%, but experts urged
caution around this figure.

“While many people globally have built up immunity to
seasonal flu strains, COVID-19 is a new virus to which
no one has immunity,” Adhanom said in a news
conference on Tuesday. “That means more people are
susceptible to infection, and some will suffer severe
disease. Globally, about 3.4% of reported COVID-19
cases have died. By comparison, seasonal flu generally
kills far fewer than 1% of those infected.”