-66.12% is the change from 673 to 228
Calculation steps:
[( 228 - 673 ) ÷ 673] x 100 = -66.12%
Formula
Percentage change = [(228 - 673) / 673] x 100
Subtract the new number by the original number
228 - 673 = -445
-445 ÷ 673 = -0.6612184249628529
-0.6612184249628529 x 100 = -66.12%