-65.8% is the change from 617 to 211
Calculation steps:
[( 211 - 617 ) ÷ 617] x 100 = -65.8%
Formula
Percentage change = [(211 - 617) / 617] x 100
Subtract the new number by the original number
211 - 617 = -406
-406 ÷ 617 = -0.6580226904376013
-0.6580226904376013 x 100 = -65.8%