Got a tip for us?
Let us know

- Thread starter alexprice
- Start date

I dont understand?wordmunger said:

40% of 62 = 62.4?

What your calculator is doing is this:alexprice said:I dont understand?

40% of 62 = 62.4?

62 + (40%)

= 62 + 0.4

= 62.4

What my calculator is doing is this:

62 + (40% * 62)

= 62 + (0.4 * 62)

= 62 + 24.8

= 86.8

Unfortunatly Maths wasn't a subject I did well on, thanks for the answer tho.wordmunger said:What your calculator is doing is this:

62 + (40%)

= 62 + 0.4

= 62.4

What my calculator is doing is this:

62 + (40% * 62)

= 62 + (0.4 * 62)

= 62 + 24.8

= 86.8

How should I do it?

alexprice said:I dont understand?

40% of 62 = 62.4?

mathematically 40% equals 0.4 . just check in EXCEL spreadsheets.

or 40% of 62 equals 62 times 0.4

what happened here is that in panther they followed the convention that the 40% is 40% of 62.

in tiger they followed the convention that excel is using.

both are correct.

62 * 40%alexprice said:Unfortunatly Maths wasn't a subject I did well on, thanks for the answer tho.

How should I do it?

+62

Probably... I'm not at my Mac. But it sounds like you need to get 40% of 62 then add the 62.

Or.... since you know 40% = .4 you could just do 62 * 1.4

I don't see where there would be confusion. I think to implicitly compute 60 + 0.4*60 when you type 60 + 40% would create more confusion and is not a good way to build a calculator.alexprice said:I'm still a bit confused, I choose +40% of the last number (62), not 1.

Sorry if I'm starting to sound dumb, I'm just a little confused.

Thanks again.

You're not saying +40% of the last number. You're saying +40%. Percentages are just another way of writing decimals. You move the decimal 2 spots to the right, and you change from a decimal to a percentage. If you wanted to say +40% of the last number, you want to write 62 + (.4*62).alexprice said:I'm still a bit confused, I choose +40% of the last number (62), not 1.

Sorry if I'm starting to sound dumb, I'm just a little confused.

Thanks again.

You can't even use a calculator?alexprice said:I'm still a bit confused, I choose +40% of the last number (62), not 1.

Sorry if I'm starting to sound dumb, I'm just a little confused.

Thanks again.

How does 62 + 40% = 62 + (40% of 62)?? In no way does typing in "40%" into your calculator imply that it's 40% of 62 (ie: 62 * 0.40).

Your way is confusing, and wrong. 62 *1.4 is what people do.

60 + 40%

that makes no sense from a mathematical perspective. 40% of what?

Ok, so you expect it to be smart and know that it's:

60 + 40% of whatever came before

So then, what should this do?

25 + 60 + 40%

Should it be:

(25 + 60) + 40% of whatever came before ==> 119

Or be:

25 + (60 + 40% of whatever came before) ==> 109

For reference, what I would do, mathematically, is:

60 * 140%

was just about to bring this up...mwpeters8182 said:

good grief... if apple can write an ENTIRE OPERATING SYSTEM, then i have faith that their calculator works... save for human error

Thanks for the replys, I do understand now.

The whole point in me using the calculator was that I wasn't very good with maths.

Alex

If you don't believe me, try it on a good ol solar powered beauty...

62 + 40 % = 86.8

With that said, alexprice - please brush up on your math - knowing the way percentage's translate to decimals is a good skill...It will prevent you from being taken advantage of when you go to finance something or calculating a discount or a tip...

And the whole reason most people aren't good with Math is the calculator...alexprice said:The whole point in me using the calculator was that I wasn't very good with maths.

I digress...I love the look I get when I give more money than I need to a cashier so I wont get more bills and coins back...For example. If I buy something and the total is 5.78 and I give the cashier 11.03, they always look at me as to why I am giving the extra 1.03. My response is always "just trust me."

Quote:

Originally Posted by alexprice

I dont understand?

40% of 62 = 62.4?

mathematically 40% equals 0.4 . just check in EXCEL spreadsheets.

or 40% of 62 equals 62 times 0.4

what happened here is that in panther they followed the convention that the 40% is 40% of 62.

in tiger they followed the convention that excel is using.

both are correct.

10.4.3 calculator does in fact work like Excel.

Try using this formula to find 40% of 62

62*40/100 =24.8

or

62*0.4=24.8