-64.49% is the change from 856 to 304
Calculation steps:
[( 304 - 856 ) ÷ 856] x 100 = -64.49%
Formula
Percentage change = [(304 - 856) / 856] x 100
Subtract the new number by the original number
304 - 856 = -552
-552 ÷ 856 = -0.6448598130841121
-0.6448598130841121 x 100 = -64.49%