-20.18% is the change from 223 to 178
Calculation steps:
[( 178 - 223 ) ÷ 223] x 100 = -20.18%
Formula
Percentage change = [(178 - 223) / 223] x 100
Subtract the new number by the original number
178 - 223 = -45
-45 ÷ 223 = -0.20179372197309417
-0.20179372197309417 x 100 = -20.18%