Question 511801
There are a couple of ways of looking at this problem.
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You can calculate the percentage and subtract.
x = 550
30% x = .3(550) = 165
550 - 165 = 385
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Or you can subtract the percentage from 100% and multiply by the result.
100% -30% = 70%
70% * 550 = .7 * 550 = 385
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Done.