-75.12% is the change from 217 to 54
Calculation steps:
[( 54 - 217 ) ÷ 217] x 100 = -75.12%
Formula
Percentage change = [(54 - 217) / 217] x 100
Subtract the new number by the original number
54 - 217 = -163
-163 ÷ 217 = -0.7511520737327189
-0.7511520737327189 x 100 = -75.12%