Flashcards › O3 Office Pro. Prep Test 1

Word form of numbers should include Hypen between numbers joining numbers between 20 - 99 e.g. twenty-one Writing cents for checks are written as fractions over 100 e.g. 00/100 no cents What are the three rounding rules 1. Determine the rounding position 2. Round up if the number to the right is 5 or more round up e.g. $10.375 rounds to $10.38 3. If the number is 4 or less the position to round to stays the same e.g. $10.374 rounds to 10.37 What are the steps to calculate the %'s of each part 1. Divide each part by the total 2. Parts should add up to 100% & adjust numbers if necessary How do you convert a fraction to a decimal Divide numerator by the denominator e.g. 1/2 1+= /2+= How do you convert a decimal to a percent Move the decimal point to the right two places e.g. 1.90 = 190% How do your convert percentages to decimals Drop the % symbol and move the decimal point 2 places to the left e.g. 25% = .25 e.g. 1.3% = .013 How do you calculate an increase or (decrease) in sales from one month to another Last month sales += 1st month sales-= e.g. Sales increase between June 2,500 and July 3,250 of 3,250 += 2,500 -= 750 How do you calculate the percentage of increase or (decrease) in sales from one month to another Sales incsales increase or (decrease) / 1st months sales e.g. 750 += / 2500 += .300000 then convert decimal to percentage (move decimal 2 places to the right) answer 30% increase In bookkeeping, we show all negative numbers as (parentheses) (300) NOTE: All calculation shown in examples, are assuming you are using a ten-key calculator Word form of numbers, percents, rounding, parts, base, rate