0
20% of 1580
= 20% * 1580
= 0.2 * 1580
= 316
3% of 1580
= 3% * 1580
= 0.03 * 1580
= 47.4
1,580 + 6.5% = 1,682.7
2% if 1580 = 1580*2/100 = 31.6
1622 - 1580 = 42