-35.58% is the change from 475 to 306
Calculation steps:
[( 306 - 475 ) ÷ 475] x 100 = -35.58%
Formula
Percentage change = [(306 - 475) / 475] x 100
Subtract the new number by the original number
306 - 475 = -169
-169 ÷ 475 = -0.35578947368421054
-0.35578947368421054 x 100 = -35.58%