-70.98% is the change from 286 to 83
Calculation steps:
[( 83 - 286 ) ÷ 286] x 100 = -70.98%
Formula
Percentage change = [(83 - 286) / 286] x 100
Subtract the new number by the original number
83 - 286 = -203
-203 ÷ 286 = -0.7097902097902098
-0.7097902097902098 x 100 = -70.98%