-48.87% is the change from 972 to 497
Calculation steps:
[( 497 - 972 ) ÷ 972] x 100 = -48.87%
Formula
Percentage change = [(497 - 972) / 972] x 100
Subtract the new number by the original number
497 - 972 = -475
-475 ÷ 972 = -0.4886831275720165
-0.4886831275720165 x 100 = -48.87%