-61.3% is the change from 814 to 315
Calculation steps:
[( 315 - 814 ) ÷ 814] x 100 = -61.3%
Formula
Percentage change = [(315 - 814) / 814] x 100
Subtract the new number by the original number
315 - 814 = -499
-499 ÷ 814 = -0.6130221130221131
-0.6130221130221131 x 100 = -61.3%