Year 9 Percentages

Which calculation would determine 17% of $3726

• 0.17×3726

• 1.17×3726

• 3726/17

• 0.83×17

Which calculation would determine 35% of $538

• 538/35

• 0.35×538

• 1.35×538

• 35×538

Which calculation would determine 2% of $609

• 609/2

• 0.2×609

• 0.02×609

• 2×609

If I increase an amount by 27%, what percentage of the original do i have now?

• 127%

• 27%

• 0.27

• 73%

If I increase an amount by 100%, what percentage of the original do i have now?

• 100%

• 1.100%

• 2

• 200%

If I decrease an amount by 10%, what percentage of the original do i have now?

• 0.9

• 10%

• 9%

• 90%

If I decrease an amount by 42%, what percentage of the original do i have now?

• 42%

• 78%

• 68%

• 58%

Which calculation increases $637 by 23%

• 637×2.23

• 637×0.23

• 637×1.23

• 637×3.23

Which calculation increases $820 by 71%

• 820×0.71

• 820×1.71

• 820×2.71

• 820×3.71

Which calculation increases $820 by 100%

• 820×2

• 820×1.100

• 820×820

• 820×1.2