-21.47% is the change from 354 to 278
Calculation steps:
[( 278 - 354 ) ÷ 354] x 100 = -21.47%
Formula
Percentage change = [(278 - 354) / 354] x 100
Subtract the new number by the original number
278 - 354 = -76
-76 ÷ 354 = -0.21468926553672316
-0.21468926553672316 x 100 = -21.47%