-66.5% is the change from 606 to 203
Calculation steps:
[( 203 - 606 ) ÷ 606] x 100 = -66.5%
Formula
Percentage change = [(203 - 606) / 606] x 100
Subtract the new number by the original number
203 - 606 = -403
-403 ÷ 606 = -0.665016501650165
-0.665016501650165 x 100 = -66.5%