-99.45% is the change from 543 to 3
Calculation steps:
[( 3 - 543 ) ÷ 543] x 100 = -99.45%
Formula
Percentage change = [(3 - 543) / 543] x 100
Subtract the new number by the original number
3 - 543 = -540
-540 ÷ 543 = -0.994475138121547
-0.994475138121547 x 100 = -99.45%