-54.02% is the change from 311 to 143
Calculation steps:
[( 143 - 311 ) ÷ 311] x 100 = -54.02%
Formula
Percentage change = [(143 - 311) / 311] x 100
Subtract the new number by the original number
143 - 311 = -168
-168 ÷ 311 = -0.5401929260450161
-0.5401929260450161 x 100 = -54.02%