-87.54% is the change from 337 to 42
Calculation steps:
[( 42 - 337 ) ÷ 337] x 100 = -87.54%
Formula
Percentage change = [(42 - 337) / 337] x 100
Subtract the new number by the original number
42 - 337 = -295
-295 ÷ 337 = -0.8753709198813057
-0.8753709198813057 x 100 = -87.54%