-42.73% is the change from 543 to 311
Calculation steps:
[( 311 - 543 ) ÷ 543] x 100 = -42.73%
Formula
Percentage change = [(311 - 543) / 543] x 100
Subtract the new number by the original number
311 - 543 = -232
-232 ÷ 543 = -0.427255985267035
-0.427255985267035 x 100 = -42.73%