-32.46% is the change from 305 to 206
Calculation steps:
[( 206 - 305 ) ÷ 305] x 100 = -32.46%
Formula
Percentage change = [(206 - 305) / 305] x 100
Subtract the new number by the original number
206 - 305 = -99
-99 ÷ 305 = -0.32459016393442625
-0.32459016393442625 x 100 = -32.46%