-45.09% is the change from 499 to 274
Calculation steps:
[( 274 - 499 ) ÷ 499] x 100 = -45.09%
Formula
Percentage change = [(274 - 499) / 499] x 100
Subtract the new number by the original number
274 - 499 = -225
-225 ÷ 499 = -0.45090180360721444
-0.45090180360721444 x 100 = -45.09%