-92.09% is the change from 430 to 34
Calculation steps:
[( 34 - 430 ) ÷ 430] x 100 = -92.09%
Formula
Percentage change = [(34 - 430) / 430] x 100
Subtract the new number by the original number
34 - 430 = -396
-396 ÷ 430 = -0.9209302325581395
-0.9209302325581395 x 100 = -92.09%