-13.59% is the change from 206 to 178
Calculation steps:
[( 178 - 206 ) ÷ 206] x 100 = -13.59%
Formula
Percentage change = [(178 - 206) / 206] x 100
Subtract the new number by the original number
178 - 206 = -28
-28 ÷ 206 = -0.13592233009708737
-0.13592233009708737 x 100 = -13.59%