First figure out the decrease:
110 - 77 = 33
Then calculate 33/77 = 0.3 or a decrease of 30%.
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The decrease from 110 to 42 is: -61.82%
- In order to increase a quantity by 10%, you multiply it by 1.1.- In order to decrease a quantity by 10%, you multiply it by 0.9.Starting out with a quantity of 100, we want to increase it 10%, and then decrease THE RESULT by 10%.(100) x (1.1) = 110(110) x (0.9) = 99The ending quantity is 99.The hypothesis of the question is exactly backwards. The net result is a 1-percent DECREASE.
110 = 11,000 percent
11
0.2 x 110 percent of x = 22 percent of x