-69.54% is the change from 650 to 198
Calculation steps:
[( 198 - 650 ) ÷ 650] x 100 = -69.54%
Formula
Percentage change = [(198 - 650) / 650] x 100
Subtract the new number by the original number
198 - 650 = -452
-452 ÷ 650 = -0.6953846153846154
-0.6953846153846154 x 100 = -69.54%