-87.66% is the change from 316 to 39
Calculation steps:
[( 39 - 316 ) ÷ 316] x 100 = -87.66%
Formula
Percentage change = [(39 - 316) / 316] x 100
Subtract the new number by the original number
39 - 316 = -277
-277 ÷ 316 = -0.8765822784810127
-0.8765822784810127 x 100 = -87.66%