-85.97% is the change from 278 to 39
Calculation steps:
[( 39 - 278 ) ÷ 278] x 100 = -85.97%
Formula
Percentage change = [(39 - 278) / 278] x 100
Subtract the new number by the original number
39 - 278 = -239
-239 ÷ 278 = -0.8597122302158273
-0.8597122302158273 x 100 = -85.97%