-73.6% is the change from 750 to 198
Calculation steps:
[( 198 - 750 ) ÷ 750] x 100 = -73.6%
Formula
Percentage change = [(198 - 750) / 750] x 100
Subtract the new number by the original number
198 - 750 = -552
-552 ÷ 750 = -0.736
-0.736 x 100 = -73.6%