what percent is 500 million to 7 billion?

500 million = 500 × 10⁶
7 billion = 7 × 10⁹

Percent = [(500 × 10⁶) / (7 × 10⁹)] × 100(%) = 7.14(%) (to 3 sig. fig.)

7.14285..%

5 * 10^8/(7 * 10^9) =
5/70 =
1/14 =
0.071%

7 billion is 7000 million
so this is 500/7000 = 5/70 = 7.14%

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