-99.57% is the change from 234 to 1
Calculation steps:
[( 1 - 234 ) ÷ 234] x 100 = -99.57%
Formula
Percentage change = [(1 - 234) / 234] x 100
Subtract the new number by the original number
1 - 234 = -233
-233 ÷ 234 = -0.9957264957264957
-0.9957264957264957 x 100 = -99.57%