-65.35% is the change from 609 to 211
Calculation steps:
[( 211 - 609 ) ÷ 609] x 100 = -65.35%
Formula
Percentage change = [(211 - 609) / 609] x 100
Subtract the new number by the original number
211 - 609 = -398
-398 ÷ 609 = -0.6535303776683087
-0.6535303776683087 x 100 = -65.35%