-99.03% is the change from 206 to 2
Calculation steps:
[( 2 - 206 ) ÷ 206] x 100 = -99.03%
Formula
Percentage change = [(2 - 206) / 206] x 100
Subtract the new number by the original number
2 - 206 = -204
-204 ÷ 206 = -0.9902912621359223
-0.9902912621359223 x 100 = -99.03%