Earnings after taxation nosedived to £673 million ($1.03 billion, 796 million euros) in the group's financial year to the end of March, compared with £7.0 billion in 2011-2012, Vodafone said in a results statement.
Group revenues retreated 4.2 percent to £44.44 billion.
Vodafone's businesses in Italy and Spain have been hit hard by the impact of the ongoing eurozone sovereign debt crisis.
The company said Tuesday that it took a second-half hit of £1.8 billion, taking its total impairment charge to £7.7 billion for Italy and Spain.
"We have faced headwinds from a combination of continued tough economic conditions, particularly in Southern Europe, and an adverse European regulatory environment," said Vodafone chief executive Vittorio Colao in the statement.
He added: "The board remains focused on balancing ongoing shareholder remuneration with the long-term investment needs of the business, and going forward aims at least to maintain the ordinary dividend per share at current levels."
Vodafone's full-year shareholder dividend stood at 10.19 pence per share, up seven percent from the previous year.
The company will meanwhile take a £3.2-billion dividend from US company Verizon Wireless, in which Vodafone has a 45-percent stake.
In a conference call, Colao told reporters that Vodafone had "nothing new to announce" about its stake in Verizon Wireless, despite ongoing media speculation, and added that it was a "fantastic asset".
Turning to the outlook, Vodafone forecast that adjusted operating profit would stand at between £12.0-£12.8 billion in the current 2013-2014 financial year.
For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who'sThat360 on Instagram and YouTube.