-66.72% is the change from 685 to 228
Calculation steps:
[( 228 - 685 ) ÷ 685] x 100 = -66.72%
Formula
Percentage change = [(228 - 685) / 685] x 100
Subtract the new number by the original number
228 - 685 = -457
-457 ÷ 685 = -0.6671532846715329
-0.6671532846715329 x 100 = -66.72%