-99.22% is the change from 128 to 1
Calculation steps:
[( 1 - 128 ) ÷ 128] x 100 = -99.22%
Formula
Percentage change = [(1 - 128) / 128] x 100
Subtract the new number by the original number
1 - 128 = -127
-127 ÷ 128 = -0.9921875
-0.9921875 x 100 = -99.22%