-98.49% is the change from 662 to 10
Calculation steps:
[( 10 - 662 ) ÷ 662] x 100 = -98.49%
Formula
Percentage change = [(10 - 662) / 662] x 100
Subtract the new number by the original number
10 - 662 = -652
-652 ÷ 662 = -0.9848942598187311
-0.9848942598187311 x 100 = -98.49%