-35.43% is the change from 971 to 627
Calculation steps:
[( 627 - 971 ) ÷ 971] x 100 = -35.43%
Formula
Percentage change = [(627 - 971) / 971] x 100
Subtract the new number by the original number
627 - 971 = -344
-344 ÷ 971 = -0.35427394438722964
-0.35427394438722964 x 100 = -35.43%