Explanation:
1.
100% = $60
1% = 100%/100 = 60/100 = $0.60
35% = 35×1% = 35 × 0.6 = $21
60 - 21 = $39
=> B
2.
100% = $55
1% = $0.55
20% = 20 × 0.55 = $11
=> G
3.
100% = $73
1% = $0.73
20% = 20 × 0.73 = $14.60
=> C
4.
100% = $32,000
1% = $320
7% = 7 × 320 = $2,240
=> I
BGCI