-42.91% is the change from 543 to 310
Calculation steps:
[( 310 - 543 ) ÷ 543] x 100 = -42.91%
Formula
Percentage change = [(310 - 543) / 543] x 100
Subtract the new number by the original number
310 - 543 = -233
-233 ÷ 543 = -0.429097605893186
-0.429097605893186 x 100 = -42.91%