Multiplier amplification 1.5 times, multiplier amplification 2 times, product amplification 1.5×2=3 times.

If the multiplicand is constant and the multiplier is enlarged by 1.5 times, the product is enlarged by 1.5 times.

If the multiplicand is reduced to half of the original, the product is reduced to half of the original under the condition that the multiplier is unchanged. , 1,