WikiJob Numerical Test 1... error?

#1

Could anyone confirm with me a possible error on WikiJob’s Numerical Test 1 Question 1?

The answer for this question worked out to be C: Y2-Y3
with the following methods:
1 - (100 / 95) * 100 = -5.26%
1 - (95 / 90) * 100 = -5.56%
1 (90 / 85) * 100 = - 5.88%

I suspect the answers could be wrongly worked out. Can anyone confirm this?

#2

You are using an incorrect formula. The one you should be using is ( (Year 2- Year 1)/ Year 1) *100