-16.77% is the change from 334 to 278
Calculation steps:
[( 278 - 334 ) ÷ 334] x 100 = -16.77%
Formula
Percentage change = [(278 - 334) / 334] x 100
Subtract the new number by the original number
278 - 334 = -56
-56 ÷ 334 = -0.16766467065868262
-0.16766467065868262 x 100 = -16.77%