-53.38% is the change from 976 to 455
Calculation steps:
[( 455 - 976 ) ÷ 976] x 100 = -53.38%
Formula
Percentage change = [(455 - 976) / 976] x 100
Subtract the new number by the original number
455 - 976 = -521
-521 ÷ 976 = -0.5338114754098361
-0.5338114754098361 x 100 = -53.38%