-13.07% is the change from 597 to 519
Calculation steps:
[( 519 - 597 ) ÷ 597] x 100 = -13.07%
Formula
Percentage change = [(519 - 597) / 597] x 100
Subtract the new number by the original number
519 - 597 = -78
-78 ÷ 597 = -0.1306532663316583
-0.1306532663316583 x 100 = -13.07%