Answer:
20%
20=4
32=6.4
54=10.8
88=17.6
120=24
25%
20=5
32=8
54=13.5
88=22
120=30
30%
20=6
32=9.6
54=16.2
88=26.4
120=36
75%
20=15
32=24
54=40.5
88=66
120=90
120%
20=24
32=38.4
54=64.8
88=105.6
120=144
Explanation:
Go to a percentage calculator to check if this isn't enough.