-11.86% is the change from 312 to 275
Calculation steps:
[( 275 - 312 ) ÷ 312] x 100 = -11.86%
Formula
Percentage change = [(275 - 312) / 312] x 100
Subtract the new number by the original number
275 - 312 = -37
-37 ÷ 312 = -0.11858974358974358
-0.11858974358974358 x 100 = -11.86%