-44.27% is the change from 917 to 511
Calculation steps:
[( 511 - 917 ) ÷ 917] x 100 = -44.27%
Formula
Percentage change = [(511 - 917) / 917] x 100
Subtract the new number by the original number
511 - 917 = -406
-406 ÷ 917 = -0.44274809160305345
-0.44274809160305345 x 100 = -44.27%