-59.62% is the change from 52 to 21
Calculation steps:
[( 21 - 52 ) ÷ 52] x 100 = -59.62%
Formula
Percentage change = [(21 - 52) / 52] x 100
Subtract the new number by the original number
21 - 52 = -31
-31 ÷ 52 = -0.5961538461538461
-0.5961538461538461 x 100 = -59.62%