-41.54% is the change from 987 to 577
Calculation steps:
[( 577 - 987 ) ÷ 987] x 100 = -41.54%
Formula
Percentage change = [(577 - 987) / 987] x 100
Subtract the new number by the original number
577 - 987 = -410
-410 ÷ 987 = -0.4154002026342452
-0.4154002026342452 x 100 = -41.54%