-59.67% is the change from 538 to 217
Calculation steps:
[( 217 - 538 ) ÷ 538] x 100 = -59.67%
Formula
Percentage change = [(217 - 538) / 538] x 100
Subtract the new number by the original number
217 - 538 = -321
-321 ÷ 538 = -0.5966542750929368
-0.5966542750929368 x 100 = -59.67%