-85.11% is the change from 685 to 102
Calculation steps:
[( 102 - 685 ) ÷ 685] x 100 = -85.11%
Formula
Percentage change = [(102 - 685) / 685] x 100
Subtract the new number by the original number
102 - 685 = -583
-583 ÷ 685 = -0.8510948905109489
-0.8510948905109489 x 100 = -85.11%