-97.19% is the change from 249 to 7
Calculation steps:
[( 7 - 249 ) ÷ 249] x 100 = -97.19%
Formula
Percentage change = [(7 - 249) / 249] x 100
Subtract the new number by the original number
7 - 249 = -242
-242 ÷ 249 = -0.9718875502008032
-0.9718875502008032 x 100 = -97.19%