-93.69% is the change from 206 to 13
Calculation steps:
[( 13 - 206 ) ÷ 206] x 100 = -93.69%
Formula
Percentage change = [(13 - 206) / 206] x 100
Subtract the new number by the original number
13 - 206 = -193
-193 ÷ 206 = -0.9368932038834952
-0.9368932038834952 x 100 = -93.69%