-91.09% is the change from 606 to 54
Calculation steps:
[( 54 - 606 ) ÷ 606] x 100 = -91.09%
Formula
Percentage change = [(54 - 606) / 606] x 100
Subtract the new number by the original number
54 - 606 = -552
-552 ÷ 606 = -0.9108910891089109
-0.9108910891089109 x 100 = -91.09%