> it's 0.0072 x 0.0003, which is 0.0002, but that's 0.02%
No. 0.0072 x 0.0003 = 0.00000216 ~= 0.000002 = 0.0002%
No. 0.0072 x 0.0003 = 0.00000216 ~= 0.000002 = 0.0002%
0.72% ⋅ 0.03%
= 0.72 ⋅ 10⁻² ⋅ 0.03 ⋅ 10⁻²
= 7.2 ⋅ 10⁻³ ⋅ 3 ⋅ 10⁻⁴
= 7.2 ⋅ 3 ⋅ 10⁻³ ⋅ 10⁻⁴
= 21.6 ⋅ 10⁻⁷
= 2.16 ⋅ 10⁻⁶
≈ 2 in 1 million