-47.8% is the change from 977 to 510
Calculation steps:
[( 510 - 977 ) ÷ 977] x 100 = -47.8%
Formula
Percentage change = [(510 - 977) / 977] x 100
Subtract the new number by the original number
510 - 977 = -467
-467 ÷ 977 = -0.4779938587512794
-0.4779938587512794 x 100 = -47.8%