-20.34% is the change from 772 to 615
Calculation steps:
[( 615 - 772 ) ÷ 772] x 100 = -20.34%
Formula
Percentage change = [(615 - 772) / 772] x 100
Subtract the new number by the original number
615 - 772 = -157
-157 ÷ 772 = -0.2033678756476684
-0.2033678756476684 x 100 = -20.34%