The percentage of the initial selling price (cost) is 100\% The percentage for the new selling price =100%−10% The percentage for the new selling price =90% If 100%= GH₵ 600 90%=
GH₵ 600×90%
100%
= GH₵ 540.00 Note: 1. The zeros ( 00 ) in 600 and 100 cancel each other 2. 6×90=540