-38.52% is the change from 971 to 597
Calculation steps:
[( 597 - 971 ) ÷ 971] x 100 = -38.52%
Formula
Percentage change = [(597 - 971) / 971] x 100
Subtract the new number by the original number
597 - 971 = -374
-374 ÷ 971 = -0.38516992790937177
-0.38516992790937177 x 100 = -38.52%