-62.88% is the change from 819 to 304
Calculation steps:
[( 304 - 819 ) ÷ 819] x 100 = -62.88%
Formula
Percentage change = [(304 - 819) / 819] x 100
Subtract the new number by the original number
304 - 819 = -515
-515 ÷ 819 = -0.6288156288156288
-0.6288156288156288 x 100 = -62.88%
Example