-71.72% is the change from 198 to 56
Calculation steps:
[( 56 - 198 ) ÷ 198] x 100 = -71.72%
Formula
Percentage change = [(56 - 198) / 198] x 100
Subtract the new number by the original number
56 - 198 = -142
-142 ÷ 198 = -0.7171717171717171
-0.7171717171717171 x 100 = -71.72%