-44.06% is the change from 497 to 278
Calculation steps:
[( 278 - 497 ) ÷ 497] x 100 = -44.06%
Formula
Percentage change = [(278 - 497) / 497] x 100
Subtract the new number by the original number
278 - 497 = -219
-219 ÷ 497 = -0.44064386317907445
-0.44064386317907445 x 100 = -44.06%