-64.56% is the change from 206 to 73
Calculation steps:
[( 73 - 206 ) ÷ 206] x 100 = -64.56%
Formula
Percentage change = [(73 - 206) / 206] x 100
Subtract the new number by the original number
73 - 206 = -133
-133 ÷ 206 = -0.6456310679611651
-0.6456310679611651 x 100 = -64.56%