-71.52% is the change from 646 to 184
Calculation steps:
[( 184 - 646 ) ÷ 646] x 100 = -71.52%
Formula
Percentage change = [(184 - 646) / 646] x 100
Subtract the new number by the original number
184 - 646 = -462
-462 ÷ 646 = -0.7151702786377709
-0.7151702786377709 x 100 = -71.52%