Although 94% sounds like a made up number (as in 94% of statistics is exaggerated), I'm afraid the number sounds plausible enough.

On occasion I get to debug spreadsheets from my wife's business and they're always riddled with errors: plain errors, as in wrong numbers; data that was measured differently last year; high level problems as not understanding relative versus absolute growth, etc.

But as the sheets are only used to support whatever the managers thought anyway, it doesn't even really matter!