27.48% is the change from 615 to 784
Calculation steps:
[( 784 - 615 ) ÷ 615] x 100 = 27.48%
Formula
Percentage change = [(784 - 615) / 615] x 100
Subtract the new number by the original number
784 - 615 = 169
169 ÷ 615 = 0.27479674796747966
0.27479674796747966 x 100 = 27.48%