-35.77% is the change from 615 to 395
Calculation steps:
[( 395 - 615 ) ÷ 615] x 100 = -35.77%
Formula
Percentage change = [(395 - 615) / 615] x 100
Subtract the new number by the original number
395 - 615 = -220
-220 ÷ 615 = -0.35772357723577236
-0.35772357723577236 x 100 = -35.77%