-91.49% is the change from 599 to 51
Calculation steps:
[( 51 - 599 ) ÷ 599] x 100 = -91.49%
Formula
Percentage change = [(51 - 599) / 599] x 100
Subtract the new number by the original number
51 - 599 = -548
-548 ÷ 599 = -0.9148580968280468
-0.9148580968280468 x 100 = -91.49%