-63.9% is the change from 421 to 152
Calculation steps:
[( 152 - 421 ) ÷ 421] x 100 = -63.9%
Formula
Percentage change = [(152 - 421) / 421] x 100
Subtract the new number by the original number
152 - 421 = -269
-269 ÷ 421 = -0.6389548693586699
-0.6389548693586699 x 100 = -63.9%