-17.3% is the change from 601 to 497
Calculation steps:
[( 497 - 601 ) ÷ 601] x 100 = -17.3%
Formula
Percentage change = [(497 - 601) / 601] x 100
Subtract the new number by the original number
497 - 601 = -104
-104 ÷ 601 = -0.17304492512479203
-0.17304492512479203 x 100 = -17.3%