-48.97% is the change from 970 to 495
Calculation steps:
[( 495 - 970 ) ÷ 970] x 100 = -48.97%
Formula
Percentage change = [(495 - 970) / 970] x 100
Subtract the new number by the original number
495 - 970 = -475
-475 ÷ 970 = -0.4896907216494845
-0.4896907216494845 x 100 = -48.97%