How much higher in percentage is the highest supply cost of the part "hot spring dodger dim light" than the lowest supply cost?
part "hot spring dodger dim light" refers to p_name = 'hot spring dodger dim light'; percentage = divide(subtract(max(ps_supplycost), min(ps_supplycost)), min(ps_supplycost)) * 100%
SELECT CAST((MAX(T1.ps_supplycost) - MIN(T1.ps_supplycost)) AS REAL) * 100 / MIN(T1.ps_supplycost) FROM partsupp AS T1 INNER JOIN supplier AS T2 ON T1.ps_suppkey = T2.s_suppkey INNER JOIN part AS T3 ON T1.ps_partkey = T3.p_partkey WHERE T3.p_name = 'hot spring dodger dim light'