-91.99% is the change from 337 to 27
Calculation steps:
[( 27 - 337 ) ÷ 337] x 100 = -91.99%
Formula
Percentage change = [(27 - 337) / 337] x 100
Subtract the new number by the original number
27 - 337 = -310
-310 ÷ 337 = -0.9198813056379822
-0.9198813056379822 x 100 = -91.99%