This works like on a resistor. On this, the last ring (in the group of three or for, not the precision ring that is separated) means the multiplier.

e.g. A red ring in this position means a multiplier of 10 to the power of two = 100.

They made the rings so that resistors, once assembled on a board, can be read from all perspectives.

Capacitors don´t have rings, but rather numbers. But similarly, the last number means the multiplier. So 104 means 10 x 10 to the power of 4 (in pF), equalling 100 nF. Similarly, a 154 would mean 150nF or 0.15 uF.

Unfortunatly for the unexperienced (and even the expert sometimes) they also print loads of other junk on the parts, like manufacturer´s proprietary information. Sometimes it is a bit of guesswork. But now you know what to look for.

have fun,

--helmut