-66.08% is the change from 678 to 230
Calculation steps:
[( 230 - 678 ) ÷ 678] x 100 = -66.08%
Formula
Percentage change = [(230 - 678) / 678] x 100
Subtract the new number by the original number
230 - 678 = -448
-448 ÷ 678 = -0.6607669616519174
-0.6607669616519174 x 100 = -66.08%