-76.34% is the change from 355 to 84
Calculation steps:
[( 84 - 355 ) ÷ 355] x 100 = -76.34%
Formula
Percentage change = [(84 - 355) / 355] x 100
Subtract the new number by the original number
84 - 355 = -271
-271 ÷ 355 = -0.7633802816901408
-0.7633802816901408 x 100 = -76.34%