-60.66% is the change from 211 to 83
Calculation steps:
[( 83 - 211 ) ÷ 211] x 100 = -60.66%
Formula
Percentage change = [(83 - 211) / 211] x 100
Subtract the new number by the original number
83 - 211 = -128
-128 ÷ 211 = -0.6066350710900474
-0.6066350710900474 x 100 = -60.66%