Utilize the input text as a context reference, choose the right relationship between MasterCard and debit card from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

In the two years to June 30 2014, eftpos' share of debit card payments fell from 80 per cent to 60 per cent, with Visa and MasterCard debit cards seizing the rest.

Answer: product_or_material_produced