The total decrease, considering the consecutive decreases by 10%, is of:
19%.
How to obtain the total decrease?
The decimal equivalent to an decrease of a% is given by the numeric value presented as follows:
(100 - a)/100.
Hence the decimal equivalent to a decrease of 10% is obtained as follows:
(100 - 10)/100 = 90/100 = 0.9.
In this problem, the amount underwent two consecutive decreases of 10%, meaning that it was multiplied by 0.9 twice.
The decimal equivalent of the final amount is of:
0.9 x 0.9 = 0.81.
The decimal equivalent of the initial amount is of:
1.
Hence the decimal equivalent of the decrease is of:
1 - 0.81 = 0.19.
Meaning that the percentage of the decrease is of:
0.19 x 100% = 19%.
More can be learned about decimal equivalents at https://brainly.com/question/26397413
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