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You would use 0.82 as a single multiplier for this calculation.

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- Hannah ❤

Answer:

0.82

Step-by-step explanation:

The original amount represents 100%

Therefore a decrease of 18% = 100 % - 18% = 82% of original amount

82% = [tex]\frac{82}{100}[/tex] = 0.82 ← multiplier