Percentage change expresses an increase or decrease relative to the original value. It makes assets with different prices or investment sizes easier to compare than raw dollar gains. section 6.5.1
Compare relative performance
A $300 gain can represent a 30% return, while a $250 gain can represent a 50% return, depending on the original investments. The percentage view can therefore rank performance differently from the dollar view. section 6.5.1
Use percentage change alongside dollar values and across multiple time frames. A large portfolio increase may feel more significant, while a short-term percentage can look worse than the long-term trend. section 6.5.1
