Singapore tax:

For the first S$20,000 0%
S$20,000 - S$30,000 3.5%
S$30,000 - S$40,000 5.5%
S$40,000 - S$80,000 8.5%
S$80,000 - S$160,000 14%
S$160,000 - S$320,000 17%
S$320,000 and above 20%
Majority ppl fall into 40000 - 90000 range. For example,

40000, SG is 8.5%, MY is ~5.43%
50000, SG is 8.5%, MY is 6.95%
55000, SG is 8.5%, MY is ~8%
60000, SG is 8.5%, MY is ~9%
80000, SG is 8.5%, MY is ~12%
100000, SG is 14%, MY is 14.475%