-29.92% is the change from 391 to 274
Calculation steps:
[( 274 - 391 ) ÷ 391] x 100 = -29.92%
Formula
Percentage change = [(274 - 391) / 391] x 100
Subtract the new number by the original number
274 - 391 = -117
-117 ÷ 391 = -0.29923273657289
-0.29923273657289 x 100 = -29.92%