846.15% is the change from 65 to 615
Calculation steps:
[( 615 - 65 ) ÷ 65] x 100 = 846.15%
Formula
Percentage change = [(615 - 65) / 65] x 100
Subtract the new number by the original number
615 - 65 = 550
550 ÷ 65 = 8.461538461538462
8.461538461538462 x 100 = 846.15%