-29.9% is the change from 388 to 272
Calculation steps:
[( 272 - 388 ) ÷ 388] x 100 = -29.9%
Formula
Percentage change = [(272 - 388) / 388] x 100
Subtract the new number by the original number
272 - 388 = -116
-116 ÷ 388 = -0.29896907216494845
-0.29896907216494845 x 100 = -29.9%