-99.63% is the change from 543 to 2
Calculation steps:
[( 2 - 543 ) ÷ 543] x 100 = -99.63%
Formula
Percentage change = [(2 - 543) / 543] x 100
Subtract the new number by the original number
2 - 543 = -541
-541 ÷ 543 = -0.996316758747698
-0.996316758747698 x 100 = -99.63%