Number 4
1 mark · EasyWork out the percentage increase when a price rises from $250 to $285.
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14 % (±0.1)
Also accept: 14
Common mistakes: (285/250) × 100; 285 – 250 = 35, but does not divide by 250
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Marking points
B1 · 1 mark · Correct calculation of percentage increase (14%).
Worked solution
Difference = 285 − 250 = 35
Percentage increase = (35 / 250) × 100 = 14%