What number comes next in the series: 200, 196, 180, 116, _____?

What number comes next in the series: 200, 196, 180, 116, _____?

Explanation

Let's analyze the pattern:

200 - 4 = 196

196 - 16 = 180

180 - 64 = 116

116 - 256 = -140

The differences are increasing in a pattern of 4, 16, 64, 256 (powers of 4).