-54.04% is the change from 977 to 449
Calculation steps:
[( 449 - 977 ) ÷ 977] x 100 = -54.04%
Formula
Percentage change = [(449 - 977) / 977] x 100
Subtract the new number by the original number
449 - 977 = -528
-528 ÷ 977 = -0.5404298874104401
-0.5404298874104401 x 100 = -54.04%