-44.34% is the change from 918 to 511
Calculation steps:
[( 511 - 918 ) ÷ 918] x 100 = -44.34%
Formula
Percentage change = [(511 - 918) / 918] x 100
Subtract the new number by the original number
511 - 918 = -407
-407 ÷ 918 = -0.4433551198257081
-0.4433551198257081 x 100 = -44.34%