-49.44% is the change from 178 to 90
Calculation steps:
[( 90 - 178 ) ÷ 178] x 100 = -49.44%
Formula
Percentage change = [(90 - 178) / 178] x 100
Subtract the new number by the original number
90 - 178 = -88
-88 ÷ 178 = -0.4943820224719101
-0.4943820224719101 x 100 = -49.44%