-69.05% is the change from 685 to 212
Calculation steps:
[( 212 - 685 ) ÷ 685] x 100 = -69.05%
Formula
Percentage change = [(212 - 685) / 685] x 100
Subtract the new number by the original number
212 - 685 = -473
-473 ÷ 685 = -0.6905109489051094
-0.6905109489051094 x 100 = -69.05%