-46.8% is the change from 515 to 274
Calculation steps:
[( 274 - 515 ) ÷ 515] x 100 = -46.8%
Formula
Percentage change = [(274 - 515) / 515] x 100
Subtract the new number by the original number
274 - 515 = -241
-241 ÷ 515 = -0.4679611650485437
-0.4679611650485437 x 100 = -46.8%