-21.6% is the change from 662 to 519
Calculation steps:
[( 519 - 662 ) ÷ 662] x 100 = -21.6%
Formula
Percentage change = [(519 - 662) / 662] x 100
Subtract the new number by the original number
519 - 662 = -143
-143 ÷ 662 = -0.21601208459214502
-0.21601208459214502 x 100 = -21.6%