-91.1% is the change from 607 to 54
Calculation steps:
[( 54 - 607 ) ÷ 607] x 100 = -91.1%
Formula
Percentage change = [(54 - 607) / 607] x 100
Subtract the new number by the original number
54 - 607 = -553
-553 ÷ 607 = -0.9110378912685337
-0.9110378912685337 x 100 = -91.1%