The FTSE 100, a key UK stock market index, has dropped 73 points (0.9 percent) to 8,080.87 today, its lowest level since April, reflecting worries about the global economy and central bank policies.

Several major companies, including Centrica PLC (which owns British Gas) and Rentokil Initial PLC (a pest control firm), saw their shares fall after releasing their financial results. Precious metals miners like Endeavour Mining PLC and Fresnillo PLC also declined.

Banks like Lloyds Banking Group…