-5.9% is the change from 915 to 861
Calculation steps:
[( 861 - 915 ) ÷ 915] x 100 = -5.9%
Formula
Percentage change = [(861 - 915) / 915] x 100
Subtract the new number by the original number
861 - 915 = -54
-54 ÷ 915 = -0.05901639344262295
-0.05901639344262295 x 100 = -5.9%