-47.52% is the change from 947 to 497
Calculation steps:
[( 497 - 947 ) ÷ 947] x 100 = -47.52%
Formula
Percentage change = [(497 - 947) / 947] x 100
Subtract the new number by the original number
497 - 947 = -450
-450 ÷ 947 = -0.4751847940865892
-0.4751847940865892 x 100 = -47.52%