-76.59% is the change from 615 to 144
Calculation steps:
[( 144 - 615 ) ÷ 615] x 100 = -76.59%
Formula
Percentage change = [(144 - 615) / 615] x 100
Subtract the new number by the original number
144 - 615 = -471
-471 ÷ 615 = -0.7658536585365854
-0.7658536585365854 x 100 = -76.59%