-60.55% is the change from 545 to 215
Calculation steps:
[( 215 - 545 ) ÷ 545] x 100 = -60.55%
Formula
Percentage change = [(215 - 545) / 545] x 100
Subtract the new number by the original number
215 - 545 = -330
-330 ÷ 545 = -0.6055045871559633
-0.6055045871559633 x 100 = -60.55%