-78.41% is the change from 917 to 198
Calculation steps:
[( 198 - 917 ) ÷ 917] x 100 = -78.41%
Formula
Percentage change = [(198 - 917) / 917] x 100
Subtract the new number by the original number
198 - 917 = -719
-719 ÷ 917 = -0.7840785169029444
-0.7840785169029444 x 100 = -78.41%