-71.67% is the change from 646 to 183
Calculation steps:
[( 183 - 646 ) ÷ 646] x 100 = -71.67%
Formula
Percentage change = [(183 - 646) / 646] x 100
Subtract the new number by the original number
183 - 646 = -463
-463 ÷ 646 = -0.7167182662538699
-0.7167182662538699 x 100 = -71.67%