-62.53% is the change from 814 to 305
Calculation steps:
[( 305 - 814 ) ÷ 814] x 100 = -62.53%
Formula
Percentage change = [(305 - 814) / 814] x 100
Subtract the new number by the original number
305 - 814 = -509
-509 ÷ 814 = -0.6253071253071253
-0.6253071253071253 x 100 = -62.53%