-94.94% is the change from 178 to 9
Calculation steps:
[( 9 - 178 ) ÷ 178] x 100 = -94.94%
Formula
Percentage change = [(9 - 178) / 178] x 100
Subtract the new number by the original number
9 - 178 = -169
-169 ÷ 178 = -0.949438202247191
-0.949438202247191 x 100 = -94.94%