-78.43% is the change from 918 to 198
Calculation steps:
[( 198 - 918 ) ÷ 918] x 100 = -78.43%
Formula
Percentage change = [(198 - 918) / 918] x 100
Subtract the new number by the original number
198 - 918 = -720
-720 ÷ 918 = -0.7843137254901961
-0.7843137254901961 x 100 = -78.43%