1
vote
2answers
75 views

Profit and Loss calculation: Fake currency

A store buys an item for $50. They price it then, at $80 ($30 profit margin). A customer ...
7
votes
2answers
128 views

Significant digits

We use currency conversion rates for financial calculations. Our currency conversion table stores conversion rates to and from each currency (about 150 world currencies) for each day, going back 20 ...
0
votes
1answer
115 views

How to handle the following percentage scenarios?

I have the following scenarios, but I am unclear on how to handle them correctly. I start off with a value like 200 and the following scenarios are: Remove 10% from 200, and then remove a compound ...
0
votes
4answers
129 views

What is the difference between the 2 ways to remove percentages?

Given the value $690$, I want to remove $10$% from that and then remove another $20$% from the resulting value, so as an example, I am doing: $690 \over {(1 + 0.1 + 0.2})$ = $690 \over {1.3}$ = ...
0
votes
1answer
248 views

Figuring a loan payoff amount

I have a loan for a principal amount of \$117,000.00 at 9.75% interest and a total amount due (including the interest for 84 months) of \$191,805.60. I had 84 months to pay it off, or I could pay it ...
1
vote
1answer
1k views

Effective Annual Rate Calculation: Tricky periods and payout frequencies

For calculating the Effective Annual Rate (EAR) from various stated interest rates, I'm using the formula: $$EAR= \left(1+\frac{r}{p}\right)^{pt}-1$$ where, $p$ = no. of payouts in a period, $t$ = ...
1
vote
2answers
7k views

Calculate gross salary when knowing the net salary and tax brackets

Assume the annually gross salary is $100,000. Tax brackets: 0 - 50K - 10% = 5K in taxes 50K - 70K - 20% = 4K in taxes 70K - $90K - 30% = 6K in taxes 90K and up - 40% = 4K in taxes The income tax ...
1
vote
1answer
165 views

Determining tax percentage

I'm working a problem, attempting to find a income tax rate that will change depending on the gross paycheck amount. Some data points: $800 gross = 11% taxed $1500 gross = 16% taxed $2000 gross = ...
0
votes
1answer
114 views

I am not getting correct currency converstion

Please can someone kindly aid me with correct solution. The question ask: If EUR 100 were used to purchase British Pounds in Year 1, what would be their approximate value if they were kept for a ...
0
votes
1answer
60 views

Have I correctly used currency conversion

Please can you help me with this question? I think I have the right answer but I want to make sure. The question asks: JPY 1,000 in Year 1 is worth how many US dollars in Year 1? Assume Value ...
1
vote
2answers
113 views

how seconds per year does the average worker work?

Approximately how many seconds per year does the average 18 – 21 year women factory worker work? Choices are... A] 2,526 B] 80208 C] 5700 D] 3,443 E] 3958 assuming Accident per person per year is ...
1
vote
1answer
269 views

not getting the right proportion

I got this answer wrong. I thought it was 55% but it seems the answer is different. Please can you have a look at this and tell me where have I gone wrong and it should be. Thanks in advance. Q) ...
0
votes
0answers
244 views

best revenue to Costs ratio

Would you say for best revenue to costs ratio would be D as cost is 0.4. Thanks in advance for your help. A) 109 (Sales Revenue) : 141 (Cost) = 0.77 B) 533 (Sales Revenue) : 307.92 (Cost) = 1.73 ...
0
votes
1answer
36 views

Do I need to calculate the payments of revenue earned as well, for present value?

A service bureau is considering renting a computer for $24$ months at $\$15,000$ per month. The first $11$ months will be required to test software for the particular application to be offered by ...
2
votes
6answers
286 views

How to solve this problem without the assistance of a calculator in under 3 minutes?

I have 3 minutes to solve questions like these: Someone invested $\$2,000$ in a fund with an interest rate of $1\%$ a month for $24$ months. Consider it to be compounded interest. What will be the ...