-50.81% is the change from 494 to 243
Calculation steps:
[( 243 - 494 ) ÷ 494] x 100 = -50.81%
Formula
Percentage change = [(243 - 494) / 494] x 100
Subtract the new number by the original number
243 - 494 = -251
-251 ÷ 494 = -0.5080971659919028
-0.5080971659919028 x 100 = -50.81%