-71.32% is the change from 638 to 183
Calculation steps:
[( 183 - 638 ) ÷ 638] x 100 = -71.32%
Formula
Percentage change = [(183 - 638) / 638] x 100
Subtract the new number by the original number
183 - 638 = -455
-455 ÷ 638 = -0.713166144200627
-0.713166144200627 x 100 = -71.32%