-22.61% is the change from 230 to 178
Calculation steps:
[( 178 - 230 ) ÷ 230] x 100 = -22.61%
Formula
Percentage change = [(178 - 230) / 230] x 100
Subtract the new number by the original number
178 - 230 = -52
-52 ÷ 230 = -0.22608695652173913
-0.22608695652173913 x 100 = -22.61%