-74.33% is the change from 970 to 249
Calculation steps:
[( 249 - 970 ) ÷ 970] x 100 = -74.33%
Formula
Percentage change = [(249 - 970) / 970] x 100
Subtract the new number by the original number
249 - 970 = -721
-721 ÷ 970 = -0.743298969072165
-0.743298969072165 x 100 = -74.33%