-98.93% is the change from 931 to 10
Calculation steps:
[( 10 - 931 ) ÷ 931] x 100 = -98.93%
Formula
Percentage change = [(10 - 931) / 931] x 100
Subtract the new number by the original number
10 - 931 = -921
-921 ÷ 931 = -0.9892588614393125
-0.9892588614393125 x 100 = -98.93%