-30.18% is the change from 971 to 678
Calculation steps:
[( 678 - 971 ) ÷ 971] x 100 = -30.18%
Formula
Percentage change = [(678 - 971) / 971] x 100
Subtract the new number by the original number
678 - 971 = -293
-293 ÷ 971 = -0.30175077239958803
-0.30175077239958803 x 100 = -30.18%