-90.98% is the change from 543 to 49
Calculation steps:
[( 49 - 543 ) ÷ 543] x 100 = -90.98%
Formula
Percentage change = [(49 - 543) / 543] x 100
Subtract the new number by the original number
49 - 543 = -494
-494 ÷ 543 = -0.9097605893186004
-0.9097605893186004 x 100 = -90.98%