A nation had a birth rate of 20 in 1990.The rate fell to 13 in 2000.What was the percentage change?
A)
$\left(\frac{20-13}{20}\right) \times 100=35 \%$
B)
$\left(\frac{20-13}{13}\right) \times 100=54 \%$
C)
$\left(\frac{13-20}{20}\right) \times 100=-35 \%$
D)
$\left(\frac{13-20}{13}\right) \times 100=-54 \%$

Question

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The Answer of A nation had a birth rate of 20 in 1990.The rate fell to 13 in 2000.What was the percentage change?
A)
$\left(\frac{20-13}{20}\right) \times 100=35 \%$
B)
$\left(\frac{20-13}{13}\right) \times 100=54 \%$
C)
$\left(\frac{13-20}{20}\right) \times 100=-35 \%$
D)
$\left(\frac{13-20}{13}\right) \times 100=-54 \%$

A Nation Had a Birth Rate of 20 in 1990 (20−1320)×100=35%\left(\frac{20-13}{20}\right) \times 100=35 \%(2020−13​)×100=35%

A Nation Had a Birth Rate of 20 in 1990 $\left(\frac{20-13}{20}\right) \times 100=35 \%$