-43.2% is the change from 544 to 309
Calculation steps:
[( 309 - 544 ) ÷ 544] x 100 = -43.2%
Formula
Percentage change = [(309 - 544) / 544] x 100
Subtract the new number by the original number
309 - 544 = -235
-235 ÷ 544 = -0.4319852941176471
-0.4319852941176471 x 100 = -43.2%