-55.18% is the change from 685 to 307
Calculation steps:
[( 307 - 685 ) ÷ 685] x 100 = -55.18%
Formula
Percentage change = [(307 - 685) / 685] x 100
Subtract the new number by the original number
307 - 685 = -378
-378 ÷ 685 = -0.5518248175182482
-0.5518248175182482 x 100 = -55.18%