-78.25% is the change from 915 to 199
Calculation steps:
[( 199 - 915 ) ÷ 915] x 100 = -78.25%
Formula
Percentage change = [(199 - 915) / 915] x 100
Subtract the new number by the original number
199 - 915 = -716
-716 ÷ 915 = -0.7825136612021858
-0.7825136612021858 x 100 = -78.25%