-76.08% is the change from 673 to 161
Calculation steps:
[( 161 - 673 ) ÷ 673] x 100 = -76.08%
Formula
Percentage change = [(161 - 673) / 673] x 100
Subtract the new number by the original number
161 - 673 = -512
-512 ÷ 673 = -0.7607726597325408
-0.7607726597325408 x 100 = -76.08%