-67.54% is the change from 650 to 211
Calculation steps:
[( 211 - 650 ) ÷ 650] x 100 = -67.54%
Formula
Percentage change = [(211 - 650) / 650] x 100
Subtract the new number by the original number
211 - 650 = -439
-439 ÷ 650 = -0.6753846153846154
-0.6753846153846154 x 100 = -67.54%