-98.38% is the change from 927 to 15
Calculation steps:
[( 15 - 927 ) ÷ 927] x 100 = -98.38%
Formula
Percentage change = [(15 - 927) / 927] x 100
Subtract the new number by the original number
15 - 927 = -912
-912 ÷ 927 = -0.9838187702265372
-0.9838187702265372 x 100 = -98.38%