-35.24% is the change from 979 to 634
Calculation steps:
[( 634 - 979 ) ÷ 979] x 100 = -35.24%
Formula
Percentage change = [(634 - 979) / 979] x 100
Subtract the new number by the original number
634 - 979 = -345
-345 ÷ 979 = -0.35240040858018384
-0.35240040858018384 x 100 = -35.24%