5 – London Olympics Oversells Swimming Event by 10,000 Tickets
4- Banking powerhouse Barclay’s accidentally bought 179 more contracts than they intended in their purchase of Lehman Brothers assets in 2008. Someone hid cells containing the unwanted contract instead of deleting them.
3-utsourcing specialists Mouchel had to endure a £4.3 million profits write down due to a spreadsheet error in a pension fund deficit caused by an outside firm of actuaries
2- Canadian power generator TransAlta suffered losses of $24 million as the result of a simple clerical error which meant they bought US contracts at higher prices than they should hav
and the Biggest one is. -
Basic Excel flaws and incorrect testing led to JP Morgan Chase losing more than $6 billion in their London Whale disaster.
https://floatapp.com/us/blog/5-greatest-spreadsheet-errors-o...