-98.86% is the change from 528 to 6
Calculation steps:
[( 6 - 528 ) ÷ 528] x 100 = -98.86%
Formula
Percentage change = [(6 - 528) / 528] x 100
Subtract the new number by the original number
6 - 528 = -522
-522 ÷ 528 = -0.9886363636363636
-0.9886363636363636 x 100 = -98.86%