-11.1% is the change from 901 to 801
Calculation steps:
[( 801 - 901 ) ÷ 901] x 100 = -11.1%
Formula
Percentage change = [(801 - 901) / 901] x 100
Subtract the new number by the original number
801 - 901 = -100
-100 ÷ 901 = -0.11098779134295228
-0.11098779134295228 x 100 = -11.1%