-55.58% is the change from 977 to 434
Calculation steps:
[( 434 - 977 ) ÷ 977] x 100 = -55.58%
Formula
Percentage change = [(434 - 977) / 977] x 100
Subtract the new number by the original number
434 - 977 = -543
-543 ÷ 977 = -0.5557830092118731
-0.5557830092118731 x 100 = -55.58%