During a certain 7-year period the consumer price index increased by 60% but during the next 7-year period, it increased by only 50% . which of these conditions must have existed during the second 7-year period?
a. deflation
b. conflation
c. stagnation
d. inflation

Can u send a screenshot of it? !

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho