The offer price of a product, or of a price component when attached to PriceSpecification and its subtypes.<br/><br/> Usage guidelines:<br/><br/> <ul> <li>Use the <a class="localLink" href="http://schema.org/priceCurrency">priceCurrency</a> property (with standard formats: <a href="http://en.wikipedia.org/wiki/ISO_4217">ISO 4217 currency format</a> e.g. "USD"; <a href="https://en.wikipedia.org/wiki/List_of_cryptocurrencies">Ticker symbol</a> for cryptocurrencies e.g. "BTC"; well known names for <a href="https://en.wikipedia.org/wiki/Local_exchange_trading_system">Local Exchange Tradings Systems</a> (LETS) and other currency types e.g. "Ithaca HOUR") instead of including <a href="http://en.wikipedia.org/wiki/Dollar_sign#Currencies_that_use_the_dollar_or_peso_sign">ambiguous symbols</a> such as '$' in the value.</li> <li>Use '.' (Unicode 'FULL STOP' (U+002E)) rather than ',' to indicate a decimal point. Avoid using these symbols as a readability separator.</li> <li>Note that both <a href="http://www.w3.org/TR/xhtml-rdfa-primer/#using-the-content-attribute">RDFa</a> and Microdata syntax allow the use of a "content=" attribute for publishing simple machine-readable values alongside more human-friendly formatting.</li> <li>Use values from 0123456789 (Unicode 'DIGIT ZERO' (U+0030) to 'DIGIT NINE' (U+0039)) rather than superficially similiar Unicode symbols.</li> </ul>