-46.67% is the change from 977 to 521
Calculation steps:
[( 521 - 977 ) ÷ 977] x 100 = -46.67%
Formula
Percentage change = [(521 - 977) / 977] x 100
Subtract the new number by the original number
521 - 977 = -456
-456 ÷ 977 = -0.46673490276356194
-0.46673490276356194 x 100 = -46.67%