-98.38% is the change from 924 to 15
Calculation steps:
[( 15 - 924 ) ÷ 924] x 100 = -98.38%
Formula
Percentage change = [(15 - 924) / 924] x 100
Subtract the new number by the original number
15 - 924 = -909
-909 ÷ 924 = -0.9837662337662337
-0.9837662337662337 x 100 = -98.38%