-66.99% is the change from 615 to 203
Calculation steps:
[( 203 - 615 ) ÷ 615] x 100 = -66.99%
Formula
Percentage change = [(203 - 615) / 615] x 100
Subtract the new number by the original number
203 - 615 = -412
-412 ÷ 615 = -0.6699186991869919
-0.6699186991869919 x 100 = -66.99%