-66.34% is the change from 606 to 204
Calculation steps:
[( 204 - 606 ) ÷ 606] x 100 = -66.34%
Formula
Percentage change = [(204 - 606) / 606] x 100
Subtract the new number by the original number
204 - 606 = -402
-402 ÷ 606 = -0.6633663366336634
-0.6633663366336634 x 100 = -66.34%