-10.46% is the change from 306 to 274
Calculation steps:
[( 274 - 306 ) ÷ 306] x 100 = -10.46%
Formula
Percentage change = [(274 - 306) / 306] x 100
Subtract the new number by the original number
274 - 306 = -32
-32 ÷ 306 = -0.10457516339869281
-0.10457516339869281 x 100 = -10.46%