-47.23% is the change from 991 to 523
Calculation steps:
[( 523 - 991 ) ÷ 991] x 100 = -47.23%
Formula
Percentage change = [(523 - 991) / 991] x 100
Subtract the new number by the original number
523 - 991 = -468
-468 ÷ 991 = -0.4722502522704339
-0.4722502522704339 x 100 = -47.23%