-76.62% is the change from 355 to 83
Calculation steps:
[( 83 - 355 ) ÷ 355] x 100 = -76.62%
Formula
Percentage change = [(83 - 355) / 355] x 100
Subtract the new number by the original number
83 - 355 = -272
-272 ÷ 355 = -0.7661971830985915
-0.7661971830985915 x 100 = -76.62%