To calculate how the number of people in the United States changed in 1950
To calculate how the number of people in the United States changed in 1950, when the population was 154 million, at various percentages, let's perform the following calculations:
80% of the population:
154,000,000×0.80 = 123,200,000154\,000\,000 \times 0.80 = 123,200\,000
154,000,000×0.80 = 123,200,000
7.7% of the population:
154,000,000×0.077 = 11,858,000154\,000\,000 \times 0.077 = 11\,858\,000
154,000,000×0.077=11,858,000
14% of the population:
154,000,000×0.14=21,560,000154\,000\,000 \times 0.14 = 21\,560\,000
154,000,000×0.14=21,560,000
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And in 2025, the population will be 330 million. How much more is that?
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To calculate how many percent more the population in 2025 (330 million) will be compared to the population in 1950 (154 million), we use the following formula:Procentowy wzrost=(
Stara warto
s
ˊ
c
ˊ
Nowa warto
s
ˊ
c
ˊ
−Stara warto
s
ˊ
c
ˊ
)×100
Podstawiając dane:
(330 000 000−154 000 000154 000 000)×100=(176 000 000154 000 000)×100≈1.14×100=114%\left( \frac{330\,000\,000 - 154\,000\,000}{154\,000\,000} \right) \times 100 = \left( \frac{176\,000\,000}{154\,000\,000} \right) \times 100 \approx 1.14 \times 100 = 114\%
(
154000000
330000000−154000000
)×100=(
154000000
176000000
)×100≈1.14×100=114%Substituting the data:
(330 000 000−154 000 000154 000 000)×100=(176 000 000154 000 000)×100≈1.14×100=114%\left( \frac{330\,000\,000 - 154\,000\,000}{154\,000\,000} \right) \times 100 = \left( \frac{176\,000\,000}{154\,000\,000} \right) \times 100 \approx 1.14 \times 100 = 114\%
(
154000000
330000000−154000000
)×100=(
154000000
176000000
)×100≈1.14×100=114%
Answer: The population in 2025 is approximately 114% larger than in 1950.

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