-40.72% is the change from 911 to 540
Calculation steps:
[( 540 - 911 ) ÷ 911] x 100 = -40.72%
Formula
Percentage change = [(540 - 911) / 911] x 100
Subtract the new number by the original number
540 - 911 = -371
-371 ÷ 911 = -0.407244785949506
-0.407244785949506 x 100 = -40.72%