-0.51% is the change from 975 to 970
Calculation steps:
[( 970 - 975 ) ÷ 975] x 100 = -0.51%
Formula
Percentage change = [(970 - 975) / 975] x 100
Subtract the new number by the original number
970 - 975 = -5
-5 ÷ 975 = -0.005128205128205128
-0.005128205128205128 x 100 = -0.51%