-11.4% is the change from 307 to 272
Calculation steps:
[( 272 - 307 ) ÷ 307] x 100 = -11.4%
Formula
Percentage change = [(272 - 307) / 307] x 100
Subtract the new number by the original number
272 - 307 = -35
-35 ÷ 307 = -0.11400651465798045
-0.11400651465798045 x 100 = -11.4%