-98.1% is the change from 211 to 4
Calculation steps:
[( 4 - 211 ) ÷ 211] x 100 = -98.1%
Formula
Percentage change = [(4 - 211) / 211] x 100
Subtract the new number by the original number
4 - 211 = -207
-207 ÷ 211 = -0.981042654028436
-0.981042654028436 x 100 = -98.1%