-82.73% is the change from 915 to 158
Calculation steps:
[( 158 - 915 ) ÷ 915] x 100 = -82.73%
Formula
Percentage change = [(158 - 915) / 915] x 100
Subtract the new number by the original number
158 - 915 = -757
-757 ÷ 915 = -0.8273224043715847
-0.8273224043715847 x 100 = -82.73%