$r=\sqrt{\dfrac{100,000,000}{95,000,000}}-1\approx 0.0260=2.60\%$
$r=\sqrt{\sqrt{\dfrac{100,000,000}{85,000,000}}}-1\approx 0.0415=4.15\%$
$r=\sqrt{\sqrt{\sqrt{\dfrac{100,000,000}{65,000,000}}}}-1\approx 0.0553=5.53\%$