240 is 100% what is 30

1. Begin with the proportion: \frac{240}{100} = \frac{30}{x}
2. To solve for \( x \), cross-multiply:
240x = 30 \times 100
3. Compute the multiplication:
240x = 3000
4. Divide both sides by 240:
x = \frac{3000}{240}
5. Simplify the division:
x = 12.5

Thus, 30 is 12.5%.