Killer Errors – Adding when you mean to subtract!

mistakes in finance

It still surprises me when we are completing a financial model audit, how often we encounter errors where rather than adding a number it is subtracted by mistake (or vice versa). Where you get a sign wrong, it’s especially bad news as it gives you twice the problem compared to missing it out completely. If […]

Killer Errors – Base Dates

mistakes in calculations

Another group of killer errors that can cause big problems are base dates for indexation, discounting, and NPV calculations. This is one close to my heart as many years ago, believe it or not, I had included an incorrect base date in an NPV calc! Thankfully it came to light before the bid went in, […]

Autumn Statement 2022

autumn statement 2022

The UK Chancellor of the Exchequer, Jeremy Hunt, delivered his Autumn Statement on the 17th of November 2022. Details of the Statement can be found here.  This followed on from the Mini-budget and Growth Plan delivered by Kwasi Kwarteng, which unsettled the markets, and was discussed in our September blog. The Chancellor had previously announced […]

Killer Errors – Indexation

mistakes in indexation

To help in our mission to save our friends and colleagues from the horrors of modelling errors, we plan to share a series of the most common errors we uncover in our role as model auditors. We hope this helps you dodge a bullet sometime soon. No 1. Indexation Some of the biggest errors we […]

An Update on the UK Mini-budget

mini budget update

The new UK Chancellor, Jeremy Hunt, delivered a fiscal statement on October 17th 2022, in a bid to reassure the markets and bring a degree of financial stability after Kwasi Kwarteng, the then Chancellor’s Mini-budget of September 23rd 2022 caused a period of economic turmoil for the UK. The Medium-Term Fiscal Plan is still scheduled […]

Openbox | A matter of perspective

blue and green futuristic image to portray data and AI machine brain

When we started building Openbox, we thought we were building a tool to create spreadsheet models. But as anyone who has started a business will tell you, customers and the market have a way of surprising you with what they really want! And one thing they want is help understanding what their model is doing. […]