What is `A_SIMPLE`% of `B_SIMPLE`? (Round to nearest whole number.)

`round((A_SIMPLE * B_SIMPLE) / 100)`

`A_SIMPLE / 100` \times `B_SIMPLE` \approx `round((A_SIMPLE * B_SIMPLE) / 100)`

`B_SIMPLE` is `A_SIMPLE`% of what number? (Round to the hundredths place.)

`round(((B_SIMPLE * 100) / A_SIMPLE) * 100) / 100`

Let `x`

be the number that `B_SIMPLE` is `A_SIMPLE`% of.

`A_SIMPLE / 100` \times x = `B_SIMPLE`

`x=`

`B_SIMPLE`/`A_SIMPLE / 100`

`x \approx`

`round((B_SIMPLE * 100/A_SIMPLE * 100))/100`

`person(1)` has `BANK_MORE` dollars in the bank today. Yesterday, `he(1)` had `BANK_FEWER` dollars in the bank. By what percentage did `person(1)`'s bank account increase over the past day? (Round your answer to the nearest hundredth of a percent.)

`round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_FEWER) / 100`

The bank account grew by

dollars `BANK_MORE` - `BANK_FEWER` = `BANK_MORE - BANK_FEWER`

`\frac{`

`BANK_MORE - BANK_FEWER`}{`BANK_FEWER`} \approx `round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_FEWER) / 100`\%

`person(1)` has `BANK_FEWER` dollars in the bank today. Yesterday, `he(1)` had `BANK_MORE` dollars in the bank. By what percentage did `person(1)`'s bank account decrease over the past day? (Round your answer to the nearest hundredth of a percent.)

`round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_MORE) / 100`

The bank account decreased by

dollars `BANK_MORE` - `BANK_FEWER` = `BANK_MORE - BANK_FEWER`

`\frac{`

`BANK_MORE - BANK_FEWER`}{`BANK_MORE`} \approx `round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_MORE) / 100`\%

`person(1)` has `YEAR_PERCENT_MORE`% more money today than `he(1)` did this time last year. If `person(1)` has `YEAR_THIS` dollars today, how many dollars did `he(1)` have this time last year? (Round to the nearest penny.)

`YEAR_LAST`

Let `x`

be the amount of money that `he(1)` had last year.

`x + `

`YEAR_PERCENT_MORE / 100`x = `YEAR_THIS`

`(100 + YEAR_PERCENT_MORE) / 100`x = `YEAR_THIS`

`x = \frac{`

`YEAR_THIS`}{`(100 + YEAR_PERCENT_MORE) / 100`}

`x \approx `

`YEAR_LAST`

`person(1)` {has {breakfast|lunch|dinner}|eats} at a {restaurant|cafe} and the cost of `his(1)` meal is $`BILL_FORMAT`. `He(1)` would like to leave a `TIP_PERCENT`% tip. What is `his(1)` total bill including tip?

`TOTAL`

The tip amount is equal to

.`TIP_PERCENT`\% \times \$`BILL_FORMAT`

We can find the tip by first calculating a `10\%`

tip and then dividing that number by two. and then multiplying that number by two. and a `5\%`

tip, and then adding those two numbers together.

To calculate a `10\%`

tip, move the decimal point in `\$`

one place to the left.`BILL_FORMAT`

`10\% \times \$`

`BILL_FORMAT` = \$`TIP_TEN_PERCENT`

To calculate a `5\%`

tip, divide the `10\%`

tip amount in half.

`5\% \times \$`

.`BILL_FORMAT` = \$`TIP_TEN_PERCENT` \div 2 = \$`TIP_FIVE_PERCENT`

To calculate a `20\%`

tip, multiply the `10\%`

tip amount by two.

`20\% \times \$`

.`BILL_FORMAT` = \$`TIP_TEN_PERCENT` \times 2 = \$`TIP_AMOUNT_FORMAT`

Adding the two amounts together gives us `\$`

.`TIP_TEN_PERCENT` + \$`TIP_FIVE_PERCENT` = \$`TIP_AMOUNT_FORMAT`

The cost of the meal plus the amount of the tip will equal the total bill amount.

`\$`

.`BILL_FORMAT` + \$`TIP_AMOUNT_FORMAT` = \$`TOTAL_FORMAT`

The total cost of the bill is `\$`

.`TOTAL_FORMAT`