Percentages

To find a percentage of an amount;

Convert the percentage to a decimal and multiply by the amount.

'a' (the percentage) divided by 100 x b (the amount).

To write a one amount as a percentage of the other;

(e.g. What percentage of b is a?)

• Divide a (the percentage) by b (the amount);
• Multiply by 100.

Percentage increase;

(aka. Increase b by a%)

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