-15.47% is the change from 278 to 235
Calculation steps:
[( 235 - 278 ) ÷ 278] x 100 = -15.47%
Formula
Percentage change = [(235 - 278) / 278] x 100
Subtract the new number by the original number
235 - 278 = -43
-43 ÷ 278 = -0.15467625899280577
-0.15467625899280577 x 100 = -15.47%