-49.17% is the change from 787 to 400
Calculation steps:
[( 400 - 787 ) ÷ 787] x 100 = -49.17%
Formula
Percentage change = [(400 - 787) / 787] x 100
Subtract the new number by the original number
400 - 787 = -387
-387 ÷ 787 = -0.49174078780177893
-0.49174078780177893 x 100 = -49.17%