-53.33% is the change from 977 to 456
Calculation steps:
[( 456 - 977 ) ÷ 977] x 100 = -53.33%
Formula
Percentage change = [(456 - 977) / 977] x 100
Subtract the new number by the original number
456 - 977 = -521
-521 ÷ 977 = -0.5332650972364381
-0.5332650972364381 x 100 = -53.33%