Product usage charges
Droplets Hours Start End $7.76
ubuntu-s-2vcpu-4gb-nyc1-01-ligthing2 (s-2vcpu-4gb) 0 02-10 20:34 02-10 20:41 $0.03
ubuntu-s-2vcpu-4gb-nyc1-01-lightning1 (s-2vcpu-4gb) 236 02-01 03:13 02-10 22:52 $7.02
ubuntu-s-2vcpu-4gb-nyc1-01 (s-2vcpu-4gb) 24 02-17 23:22 02-18 23:51 $0.71
Block Storage Hours Start End $87.86
volume-nyc1-01 (nyc1) - 300GB Volume 654 02-01 00:00 02-28 05:53 $29.20
volume-nyc1-02 (nyc1) - 300GB Volume 651 02-01 03:13 02-28 05:53 $29.06
volume-nyc1-04 (nyc1) - 300GB Volume 246 02-17 23:22 02-28 05:53 $10.98
volume-nyc1-03 (nyc1) - 300GB Volume 417 02-10 20:34 02-28 05:53 $18.62

^as seen above I have no active droplet, but still volumes that I bought for those droplets, I am getting charged for. What I did wrong and how to destroy those volumes?