-53.11% is the change from 305 to 143
Calculation steps:
[( 143 - 305 ) ÷ 305] x 100 = -53.11%
Formula
Percentage change = [(143 - 305) / 305] x 100
Subtract the new number by the original number
143 - 305 = -162
-162 ÷ 305 = -0.5311475409836065
-0.5311475409836065 x 100 = -53.11%