-4.3% is the change from 186 to 178
Calculation steps:
[( 178 - 186 ) ÷ 186] x 100 = -4.3%
Formula
Percentage change = [(178 - 186) / 186] x 100
Subtract the new number by the original number
178 - 186 = -8
-8 ÷ 186 = -0.043010752688172046
-0.043010752688172046 x 100 = -4.3%