The answer depends on how quantitative the business management degree is. A business management degree at Edgehill will be very different from one at Bath or Warwick! so in the first instance look carefully at the modules on offer, this is what will tell you how essay based it may or may not be. Does the course at Edgehill lead to exam exemptions for e.g ACCA?? that may be another clue as to how quantitative or essay based it will be.
My last point is, how much really do you want to do this course as it doesn't sound like you really like it that much i.e Bus. Mgt? please don't study a degree half heartedly. If you're not sure what to do yet, why not take a year out? what are you hoping to do after your degree in business management?