-34.81% is the change from 474 to 309
Calculation steps:
[( 309 - 474 ) ÷ 474] x 100 = -34.81%
Formula
Percentage change = [(309 - 474) / 474] x 100
Subtract the new number by the original number
309 - 474 = -165
-165 ÷ 474 = -0.34810126582278483
-0.34810126582278483 x 100 = -34.81%