The options are wrong lol, it is -1/8
Answer:

It's change of subject. :)
100 - 20 = 80
179.00 = 80%
179.00 / 80 = 2.2375 = 1%
1% x 100 = 100%
So, 2.2375 x 100 = 100%
Therefore the original price was 223.75
7 x 2 = 14
3 x 1 = 3
14+3 = 17
answer 17 unit^2