-42.78% is the change from 970 to 555
Calculation steps:
[( 555 - 970 ) ÷ 970] x 100 = -42.78%
Formula
Percentage change = [(555 - 970) / 970] x 100
Subtract the new number by the original number
555 - 970 = -415
-415 ÷ 970 = -0.42783505154639173
-0.42783505154639173 x 100 = -42.78%