-57.78% is the change from 649 to 274
Calculation steps:
[( 274 - 649 ) ÷ 649] x 100 = -57.78%
Formula
Percentage change = [(274 - 649) / 649] x 100
Subtract the new number by the original number
274 - 649 = -375
-375 ÷ 649 = -0.5778120184899846
-0.5778120184899846 x 100 = -57.78%