-44.55% is the change from 321 to 178
Calculation steps:
[( 178 - 321 ) ÷ 321] x 100 = -44.55%
Formula
Percentage change = [(178 - 321) / 321] x 100
Subtract the new number by the original number
178 - 321 = -143
-143 ÷ 321 = -0.4454828660436137
-0.4454828660436137 x 100 = -44.55%