-93.14% is the change from 437 to 30
Calculation steps:
[( 30 - 437 ) ÷ 437] x 100 = -93.14%
Formula
Percentage change = [(30 - 437) / 437] x 100
Subtract the new number by the original number
30 - 437 = -407
-407 ÷ 437 = -0.931350114416476
-0.931350114416476 x 100 = -93.14%