-56.24% is the change from 617 to 270
Calculation steps:
[( 270 - 617 ) ÷ 617] x 100 = -56.24%
Formula
Percentage change = [(270 - 617) / 617] x 100
Subtract the new number by the original number
270 - 617 = -347
-347 ÷ 617 = -0.5623987034035657
-0.5623987034035657 x 100 = -56.24%