-99.57% is the change from 233 to 1
Calculation steps:
[( 1 - 233 ) ÷ 233] x 100 = -99.57%
Formula
Percentage change = [(1 - 233) / 233] x 100
Subtract the new number by the original number
1 - 233 = -232
-232 ÷ 233 = -0.9957081545064378
-0.9957081545064378 x 100 = -99.57%