-66.52% is the change from 687 to 230
Calculation steps:
[( 230 - 687 ) ÷ 687] x 100 = -66.52%
Formula
Percentage change = [(230 - 687) / 687] x 100
Subtract the new number by the original number
230 - 687 = -457
-457 ÷ 687 = -0.6652110625909753
-0.6652110625909753 x 100 = -66.52%