-93.66% is the change from 662 to 42
Calculation steps:
[( 42 - 662 ) ÷ 662] x 100 = -93.66%
Formula
Percentage change = [(42 - 662) / 662] x 100
Subtract the new number by the original number
42 - 662 = -620
-620 ÷ 662 = -0.9365558912386707
-0.9365558912386707 x 100 = -93.66%