-70.04% is the change from 277 to 83
Calculation steps:
[( 83 - 277 ) ÷ 277] x 100 = -70.04%
Formula
Percentage change = [(83 - 277) / 277] x 100
Subtract the new number by the original number
83 - 277 = -194
-194 ÷ 277 = -0.7003610108303249
-0.7003610108303249 x 100 = -70.04%