-52.48% is the change from 665 to 316
Calculation steps:
[( 316 - 665 ) ÷ 665] x 100 = -52.48%
Formula
Percentage change = [(316 - 665) / 665] x 100
Subtract the new number by the original number
316 - 665 = -349
-349 ÷ 665 = -0.524812030075188
-0.524812030075188 x 100 = -52.48%