1 <page xmlns="http://projectmallard.org/1.0/"
6 <link type="guide" xref="index#equation"/>
9 <title>Percentages</title>
12 Percentages are calculated using the % symbol.
15 When added or subtracted the percentage symbol resolves to one percent of the value being added or subtracted from.
16 The following equation calculates the price of a $140 item with 15% tax (140 + (15÷100)×140).
24 In all other cases the percentage symbol resolves to a fraction out of 100.
25 The following equation calculates one quarter of 80 apples ((25÷100)×80).