-66.81% is the change from 687 to 228
Calculation steps:
[( 228 - 687 ) ÷ 687] x 100 = -66.81%
Formula
Percentage change = [(228 - 687) / 687] x 100
Subtract the new number by the original number
228 - 687 = -459
-459 ÷ 687 = -0.6681222707423581
-0.6681222707423581 x 100 = -66.81%