-77.93% is the change from 974 to 215
Calculation steps:
[( 215 - 974 ) ÷ 974] x 100 = -77.93%
Formula
Percentage change = [(215 - 974) / 974] x 100
Subtract the new number by the original number
215 - 974 = -759
-759 ÷ 974 = -0.7792607802874744
-0.7792607802874744 x 100 = -77.93%