-49.54% is the change from 977 to 493
Calculation steps:
[( 493 - 977 ) ÷ 977] x 100 = -49.54%
Formula
Percentage change = [(493 - 977) / 977] x 100
Subtract the new number by the original number
493 - 977 = -484
-484 ÷ 977 = -0.4953940634595701
-0.4953940634595701 x 100 = -49.54%