1 * (1 - 0.3) = 0.7 0.7 * (1 + 0.43) ~= 1 It might be more intuitive with round numbers. If you lose 50%, you need to double (+100%) to get back to your origi

1 * (1 - 0.3) = 0.7 0.7 * (1 + 0.43) ~= 1 It might be more intuitive with round numbers. If you lose 50%, you need to double (+100%) to get back to your original value.