-74.57% is the change from 979 to 249
Calculation steps:
[( 249 - 979 ) ÷ 979] x 100 = -74.57%
Formula
Percentage change = [(249 - 979) / 979] x 100
Subtract the new number by the original number
249 - 979 = -730
-730 ÷ 979 = -0.745658835546476
-0.745658835546476 x 100 = -74.57%