-78.86% is the change from 317 to 67
Calculation steps:
[( 67 - 317 ) ÷ 317] x 100 = -78.86%
Formula
Percentage change = [(67 - 317) / 317] x 100
Subtract the new number by the original number
67 - 317 = -250
-250 ÷ 317 = -0.7886435331230284
-0.7886435331230284 x 100 = -78.86%