-99.58% is the change from 238 to 1
Calculation steps:
[( 1 - 238 ) ÷ 238] x 100 = -99.58%
Formula
Percentage change = [(1 - 238) / 238] x 100
Subtract the new number by the original number
1 - 238 = -237
-237 ÷ 238 = -0.9957983193277311
-0.9957983193277311 x 100 = -99.58%