-20.64% is the change from 654 to 519
Calculation steps:
[( 519 - 654 ) ÷ 654] x 100 = -20.64%
Formula
Percentage change = [(519 - 654) / 654] x 100
Subtract the new number by the original number
519 - 654 = -135
-135 ÷ 654 = -0.20642201834862386
-0.20642201834862386 x 100 = -20.64%