-63.55% is the change from 834 to 304
Calculation steps:
[( 304 - 834 ) ÷ 834] x 100 = -63.55%
Formula
Percentage change = [(304 - 834) / 834] x 100
Subtract the new number by the original number
304 - 834 = -530
-530 ÷ 834 = -0.6354916067146283
-0.6354916067146283 x 100 = -63.55%