Somewhat counter-intuitively, but didn't Double Line (or some other firm) produce an article that the lower interest rates are, the less affect there is in lowe

Somewhat counter-intuitively, but didn't Double Line (or some other firm) produce an article that the lower interest rates are, the less affect there is in lowering the rate? One would assume that a cut from 1% to 0.5% would mean a 50% change in Interest Payments. While a 8% to a 7.5% cut would mean only a ~6% change. In practice, it's much more complicated than that.