-63.06% is the change from 823 to 304
Calculation steps:
[( 304 - 823 ) ÷ 823] x 100 = -63.06%
Formula
Percentage change = [(304 - 823) / 823] x 100
Subtract the new number by the original number
304 - 823 = -519
-519 ÷ 823 = -0.6306196840826246
-0.6306196840826246 x 100 = -63.06%