-66.99% is the change from 206 to 68
Calculation steps:
[( 68 - 206 ) ÷ 206] x 100 = -66.99%
Formula
Percentage change = [(68 - 206) / 206] x 100
Subtract the new number by the original number
68 - 206 = -138
-138 ÷ 206 = -0.6699029126213593
-0.6699029126213593 x 100 = -66.99%