Perfect squares
Percent change
100

The square root of 4

2

100

Original:22

Absolute change:6

37% Increase 

200

The square root of 16

4

200

Original:50

Absolute change:9

18% increase

300

The square root of 36

6

300

Original:56

Absolute change:-8

14% decrease 

400

The square root of 169

13

400

Original:98

New:125

28% Increase 

500

The square root of 225

15

500

Original :96

New:56

42% decrease