-83.99% is the change from 662 to 106
Calculation steps:
[( 106 - 662 ) ÷ 662] x 100 = -83.99%
Formula
Percentage change = [(106 - 662) / 662] x 100
Subtract the new number by the original number
106 - 662 = -556
-556 ÷ 662 = -0.8398791540785498
-0.8398791540785498 x 100 = -83.99%