-62.65% is the change from 814 to 304
Calculation steps:
[( 304 - 814 ) ÷ 814] x 100 = -62.65%
Formula
Percentage change = [(304 - 814) / 814] x 100
Subtract the new number by the original number
304 - 814 = -510
-510 ÷ 814 = -0.6265356265356266
-0.6265356265356266 x 100 = -62.65%