-66.12% is the change from 605 to 205
Calculation steps:
[( 205 - 605 ) ÷ 605] x 100 = -66.12%
Formula
Percentage change = [(205 - 605) / 605] x 100
Subtract the new number by the original number
205 - 605 = -400
-400 ÷ 605 = -0.6611570247933884
-0.6611570247933884 x 100 = -66.12%