-53.27% is the change from 306 to 143
Calculation steps:
[( 143 - 306 ) ÷ 306] x 100 = -53.27%
Formula
Percentage change = [(143 - 306) / 306] x 100
Subtract the new number by the original number
143 - 306 = -163
-163 ÷ 306 = -0.5326797385620915
-0.5326797385620915 x 100 = -53.27%