Cara Menghitung Percentage
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A percentage represents a ratio expressed as a fraction of 100. The word comes from Latin "per centum" meaning "by the hundred." Percentages are used everywhere: discounts, test scores, tax rates, nutrition labels, and statistics.
Panduan Langkah demi Langkah
- 1Identify what you are given: the part, the whole, or the percentage
- 2Use the formula: Percentage = (Part ÷ Whole) × 100
- 3Rearrange for what you need: Part = (P/100) × Whole
- 4Always double-check by verifying the part is less than the whole (unless > 100%)
Contoh Terpecahkan
Masukan
What is 15% of 200?
Hasil
30
(15/100) × 200 = 30
Masukan
45 is what % of 180?
Hasil
25%
(45/180) × 100 = 25%
Masukan
Price: $80 after 20% discount
Hasil
$64
$80 × (1 − 0.20) = $64
Masukan
% change from 50 to 65
Hasil
+30%
((65−50)/50) × 100 = 30%
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