-31.6% is the change from 617 to 422
Calculation steps:
[( 422 - 617 ) ÷ 617] x 100 = -31.6%
Formula
Percentage change = [(422 - 617) / 617] x 100
Subtract the new number by the original number
422 - 617 = -195
-195 ÷ 617 = -0.3160453808752026
-0.3160453808752026 x 100 = -31.6%