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10 cards from this deck
Traditional calculation and multiplier method
Calculate % of amount, then add or subtract it
Quicker and reduces chance of errors
1.31.31.3 (100% + 30% = 130% = 1.3)
0.740.740.74 (100% - 26% = 74% = 0.74)
(ChangeOriginal)×100%\left(\frac{\text{Change}}{\text{Original}}\right) \times 100\%(OriginalChange)×100%
2 decimal places
Increases
Decreases
Percentage profit or percentage loss
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