Today, the UK’s largest pharma company pays out its April dividend.
23p a share is the dividend.
Total number of voting rights in the Company is 4,987,643,129
https://www.londonstockexchange.com/exchange/news/market-news/market-news-detail/GSK/14024193.html
Thus:
4,987,643,129 x £0.23 = £1,147,157,919.67
That is £1.147 Billion.
https://www.shareshop.hsbc.co.uk/shareshop/security.cgi?csi=10042
That is 5% yield.