-90.27% is the change from 915 to 89
Calculation steps:
[( 89 - 915 ) ÷ 915] x 100 = -90.27%
Formula
Percentage change = [(89 - 915) / 915] x 100
Subtract the new number by the original number
89 - 915 = -826
-826 ÷ 915 = -0.9027322404371585
-0.9027322404371585 x 100 = -90.27%