-67.16% is the change from 673 to 221
Calculation steps:
[( 221 - 673 ) ÷ 673] x 100 = -67.16%
Formula
Percentage change = [(221 - 673) / 673] x 100
Subtract the new number by the original number
221 - 673 = -452
-452 ÷ 673 = -0.6716196136701337
-0.6716196136701337 x 100 = -67.16%