-90.29% is the change from 206 to 20
Calculation steps:
[( 20 - 206 ) ÷ 206] x 100 = -90.29%
Formula
Percentage change = [(20 - 206) / 206] x 100
Subtract the new number by the original number
20 - 206 = -186
-186 ÷ 206 = -0.9029126213592233
-0.9029126213592233 x 100 = -90.29%