That answer is wrong the real answer is 12040 trust me i just had the question and i got it wrong so in stead of cheating i had to work it out and i did
in(0.30)/-0.0001=12039.72but it says round so the correct answer is 12040!!!!!
Old
9.99×55
=549.45
New
10.68×55
=587.4
((10.68÷9.99)−1)×100
=6.9%
