-71.88% is the change from 128 to 36
Calculation steps:
[( 36 - 128 ) ÷ 128] x 100 = -71.88%
Formula
Percentage change = [(36 - 128) / 128] x 100
Subtract the new number by the original number
36 - 128 = -92
-92 ÷ 128 = -0.71875
-0.71875 x 100 = -71.88%