-45.75% is the change from 212 to 115
Calculation steps:
[( 115 - 212 ) ÷ 212] x 100 = -45.75%
Formula
Percentage change = [(115 - 212) / 212] x 100
Subtract the new number by the original number
115 - 212 = -97
-97 ÷ 212 = -0.45754716981132076
-0.45754716981132076 x 100 = -45.75%