-28.09% is the change from 178 to 128
Calculation steps:
[( 128 - 178 ) ÷ 178] x 100 = -28.09%
Formula
Percentage change = [(128 - 178) / 178] x 100
Subtract the new number by the original number
128 - 178 = -50
-50 ÷ 178 = -0.2808988764044944
-0.2808988764044944 x 100 = -28.09%