632.14% is the change from 84 to 615
Calculation steps:
[( 615 - 84 ) ÷ 84] x 100 = 632.14%
Formula
Percentage change = [(615 - 84) / 84] x 100
Subtract the new number by the original number
615 - 84 = 531
531 ÷ 84 = 6.321428571428571
6.321428571428571 x 100 = 632.14%