-55.27% is the change from 977 to 437
Calculation steps:
[( 437 - 977 ) ÷ 977] x 100 = -55.27%
Formula
Percentage change = [(437 - 977) / 977] x 100
Subtract the new number by the original number
437 - 977 = -540
-540 ÷ 977 = -0.5527123848515865
-0.5527123848515865 x 100 = -55.27%