-98.8% is the change from 917 to 11
Calculation steps:
[( 11 - 917 ) ÷ 917] x 100 = -98.8%
Formula
Percentage change = [(11 - 917) / 917] x 100
Subtract the new number by the original number
11 - 917 = -906
-906 ÷ 917 = -0.9880043620501636
-0.9880043620501636 x 100 = -98.8%