-71.34% is the change from 642 to 184
Calculation steps:
[( 184 - 642 ) ÷ 642] x 100 = -71.34%
Formula
Percentage change = [(184 - 642) / 642] x 100
Subtract the new number by the original number
184 - 642 = -458
-458 ÷ 642 = -0.7133956386292835
-0.7133956386292835 x 100 = -71.34%