-98.47% is the change from 655 to 10
Calculation steps:
[( 10 - 655 ) ÷ 655] x 100 = -98.47%
Formula
Percentage change = [(10 - 655) / 655] x 100
Subtract the new number by the original number
10 - 655 = -645
-645 ÷ 655 = -0.9847328244274809
-0.9847328244274809 x 100 = -98.47%