-93.88% is the change from 278 to 17
Calculation steps:
[( 17 - 278 ) ÷ 278] x 100 = -93.88%
Formula
Percentage change = [(17 - 278) / 278] x 100
Subtract the new number by the original number
17 - 278 = -261
-261 ÷ 278 = -0.9388489208633094
-0.9388489208633094 x 100 = -93.88%