-33.66% is the change from 306 to 203
Calculation steps:
[( 203 - 306 ) ÷ 306] x 100 = -33.66%
Formula
Percentage change = [(203 - 306) / 306] x 100
Subtract the new number by the original number
203 - 306 = -103
-103 ÷ 306 = -0.3366013071895425
-0.3366013071895425 x 100 = -33.66%