Business stats percentage question. Will pick a best answer.?

Question

So this question is really simple but I've tried my answers a couple of times & I keep getting it wrong for some reason. 
The entire question is irrelevant expect for the last bit:
The Commerce Department reported receiving the following applications for the Malcolm Baldrige National Quality Award: 23 from large manufacturing firms, 18 from large service firms, and 30 from small businesses.
What percentage of the applications came from small businesses (to 1 decimal)?

I've tried everything I know about percentages & I'm getting it wrong so if you could explain a little about the answer I'd really appreciate it!
I will choose a best answer. Thanks in advance! :)

Anonymous · Accepted Answer

You just add all the numbers together and divide the amount from small businesses.
The total number is: 71
30/71= 0.423*100= 42.3%

Check your work by adding the other percentages:
42.3+ 32.9+ 25.7= 100.9 which is close enough, so your answer is 42.3%.

Anonymous · Answer

23 from large manufacturing firms
 18 from large service firms
 30 from small businesses.
--------------------------------------
 71 apps

30/71 = 0.42253521126760563380281690140845
30/71 = 42.253521126760563380281690140845%
30/71 = 42.3%

rounded after computing percentage

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Business stats percentage question. Will pick a best answer.?

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