The 1918 Flu Pandemic killed 3 to 5 percent of everyone on earth or 50 to 100 million people and 675,000 Americans.

The 1918 flu pandemic (January 1918 – December 1920) was an unusually deadly influenza pandemic, the first of the two pandemics involving H1N1 influenza virus.^[1] It infected 500 million people across the world,^[2] including remote Pacific islands and the Arctic, and resulted in the deaths of 50 to 100 million (three to five percent of the world's population^[3]), making it one of the deadliest natural disasters in human history.

end partial quote from:

1918 flu pandemic - Wikipedia

note: This quote was from this article from Wikipedia in 2016. Since Wikipedia is being modified in some ways every single day it might read different now with more or less or different information than was available then.

According to google the population of earth in 2018 was:

7.594 billion (2018) and 3% of the total population of earth now is:
227,820,000 dead if coronavirus is equal to 1918 Spanish flu.

And 5% of 7.594 Billion people is: 

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5 percent of 7.59400 billion =

379,700,000

So, Search Results

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You can search for any mathematical expression, using functions such as: sin, cos, sqrt, etc. You can find a complete list of functions here.

Rad Deg		x!
Inv	sin	ln
π	cos	log
e	tan	√
Ans	EXP	xy

(	)	%	AC
7	8	9	÷
4	5	6	×
1	2	3	−
0	.	=	+