In January, 55 percent of a hospital's 300 patients were women. In February, 30 percent of its 440 patients were women. What was the percent change in the number of women patients from January to February?
- Decrease of 20%
- Increase of 20%
- Decrease of 25%
- Increase of 25%
- Increase of 46.67%
Explanation
January: 55% of 300 = 0.55 × 300 = 165 women
February: 30% of 440 = 0.30 × 440 = 132 women
Change = 165 - 132 = 33 decrease
Percent change = (33 / 165) × 100 = 20% decrease
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