70 per-cent of 200 = -130
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Simply cross multiply fractions. Percentage is in terms of the value 100.
(x/100) is the percentage (x) over 100
(70/200) is what you want to be refined as a percentage
(x)/(100) = (70)/(200)
Cross multiplication consists of multiplying the denominator of one side of the equation to the numerator on the opposing side. So:
(x)/(100) = (70)/(200) becomes
(200)(x) = (70)(100)
200x = 7000
x = 7000/200
x = 35
70 is 35% of 200
To find 70 percent of a number, multiply the number by 0.7. In this instance, 0.7 x 200 = 140. Therefore, 70 percent of 200 is equal to 140.