-58.85% is the change from 243 to 100
Calculation steps:
[( 100 - 243 ) ÷ 243] x 100 = -58.85%
Formula
Percentage change = [(100 - 243) / 243] x 100
Subtract the new number by the original number
100 - 243 = -143
-143 ÷ 243 = -0.588477366255144
-0.588477366255144 x 100 = -58.85%