-47.5% is the change from 200 to 105
Calculation steps:
[( 105 - 200 ) ÷ 200] x 100 = -47.5%
Formula
Percentage change = [(105 - 200) / 200] x 100
Subtract the new number by the original number
105 - 200 = -95
-95 ÷ 200 = -0.475
-0.475 x 100 = -47.5%