-60.04% is the change from 538 to 215
Calculation steps:
[( 215 - 538 ) ÷ 538] x 100 = -60.04%
Formula
Percentage change = [(215 - 538) / 538] x 100
Subtract the new number by the original number
215 - 538 = -323
-323 ÷ 538 = -0.6003717472118959
-0.6003717472118959 x 100 = -60.04%