-86.45% is the change from 915 to 124
Calculation steps:
[( 124 - 915 ) ÷ 915] x 100 = -86.45%
Formula
Percentage change = [(124 - 915) / 915] x 100
Subtract the new number by the original number
124 - 915 = -791
-791 ÷ 915 = -0.8644808743169399
-0.8644808743169399 x 100 = -86.45%