DISCOUNT
Solve sale price, discount or original
Percent of original • NO SCROLL
SOLVE FOR
SALE
Pick the unknown
ROUNDING
2DP
Money usually 2dp
ORIGINAL (£)
£
Before discount
DISCOUNT %
20%
Percent of original
SALE (£)
£
Only needed for ORIGINAL
MULTIPLIER
×0.80
SALE = ORIGINAL × (1−p)
WORKING
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SALE
READY
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SOLVE FOR
SALE
Pick the unknown
ROUNDING
2DP
Money usually 2dp
ORIGINAL (£)
£
Before discount
DISCOUNT %
20%
Percent of original
SALE (£)
£
Only needed for ORIGINAL
MULTIPLIER
×0.80
SALE = ORIGINAL × (1−p)
WORKING
—
—
—
—
—
SALE
READY
—
PAGE 1/2
HOW TO USE
1) Choose SOLVE FOR
2) Enter the values you know
3) Press SOLVE
4) Read the working + answer
FIND SALE PRICE
SALE = ORIGINAL × (1−p)
Example: 20% off
×0.80
FIND DISCOUNT
DISCOUNT = ORIGINAL × p
Then SALE = ORIGINAL−DISCOUNT
FIND ORIGINAL
ORIGINAL = SALE ÷ (1−p)
Example: SALE £64 at 20%
64 ÷ 0.80 = £80
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