Numerical foundations: units, ratios and percentage bases

A shop's weekly sales rise from £45,000 to £54,000. What is the percentage increase?

A firm's market share falls from 30% to 24%. Which statement is correct?

A £60 jacket is reduced by 15%. What is the sale price?

Costs rise by 10% one year and by 10% again the next. What is the total rise over two years?

A firm has current assets of £36,000 and current liabilities of £24,000. What is the ratio of current assets to current liabilities?

A café sold 12,600 coffees in a 30-day month. What was the average number sold per day?

A product's sales are £0.4 million. Total company sales are £1.6 million. What percentage of company sales does the product make up?

A price index uses 2020 = 100. It is 125 in 2025 and 115 in 2026. What happened to prices between 2025 and 2026?